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Tutors Answer Your Questions about Quadratic-relations-and-conic-sections (FREE)
Question 167819: Can I get some help with this problem as well? I posted it the other day and did not get a response. Thanks in advance.
Find an equation of the hyperbola centered at the origin with vertice at
( 0, 3 ) and focus at (0,5).
: Can I get some help with this problem as well? I posted it the other day and did not get a response. Thanks in advance.
Find an equation of the hyperbola centered at the origin with vertice at
( 0, 3 ) and focus at (0,5).
Click here to see answer by midwood_trail(221)  |
Question 167683: A graph doesn't need to come with this one, but one does need to put it into a quadratic model for each set of values.
(-4,1) (0,9) (1,16): A graph doesn't need to come with this one, but one does need to put it into a quadratic model for each set of values.
(-4,1) (0,9) (1,16)
Click here to see answer by Alan3354(1178) |
Question 167684: A toy rocket is shot upward from ground level. The values show the height of the rocket at different times.
x = time (seconds)
f(x) = height (feet)
Values = (0,0) (1,256) (2,480) (3,672) (4,832): A toy rocket is shot upward from ground level. The values show the height of the rocket at different times.
x = time (seconds)
f(x) = height (feet)
Values = (0,0) (1,256) (2,480) (3,672) (4,832)
Click here to see answer by stanbon(18725) |
Question 166883: PLEASE HELP!!!
Write an equation for the parabola with focus (4,0) and directrix y=2
I must show my work.
Thanks: PLEASE HELP!!!
Write an equation for the parabola with focus (4,0) and directrix y=2
I must show my work.
Thanks
Click here to see answer by scott8148(2719) |
Question 166890: if y=2x(squared)+6x+1 what are the coeffecients, what is the vertex of the parabola, what is the axis of symmetry, what is the y-intercept, and if it is reflected across the y-intercept across the axis of symmetry x=_____, x=______
pleas help i'm in jeapordy of failing. contact me- for subject put alg 2
o and we do nnot use a textbook to do work.: if y=2x(squared)+6x+1 what are the coeffecients, what is the vertex of the parabola, what is the axis of symmetry, what is the y-intercept, and if it is reflected across the y-intercept across the axis of symmetry x=_____, x=______
pleas help i'm in jeapordy of failing. contact me- for subject put alg 2
o and we do nnot use a textbook to do work.
Click here to see answer by MRperkins(74) |
Question 166195: I need help.
What is the equation of the ellipse with foci at (0,4) and (0,4) and the sum of its focal radii being 10?
2a=10 so a=5 center is at (0,0)
could the answer be x^2 + y^2 = 16 ????: I need help.
What is the equation of the ellipse with foci at (0,4) and (0,4) and the sum of its focal radii being 10?
2a=10 so a=5 center is at (0,0)
could the answer be x^2 + y^2 = 16 ????
Click here to see answer by Mathtut(308) |
Question 166083: What is the equation for the parabola with focus (-2,-2) and directrix y=4?
: What is the equation for the parabola with focus (-2,-2) and directrix y=4?
Click here to see answer by gonzo(428) |
Question 166083: What is the equation for the parabola with focus (-2,-2) and directrix y=4?
: What is the equation for the parabola with focus (-2,-2) and directrix y=4?
Click here to see answer by midwood_trail(221) |
Question 166194: I submitted this question a couple of weeks ago, but I never received a response. Can anybody help me out?
What is the equation of a parabola with vertex (0,0) and focus (0,4)?
THanks alot!: I submitted this question a couple of weeks ago, but I never received a response. Can anybody help me out?
What is the equation of a parabola with vertex (0,0) and focus (0,4)?
THanks alot!
Click here to see answer by Fombitz(1740) |
Question 166176: Can anybody tell me if I have identified these correctly? I'm not sure.
Thanks!!!
a) (x-3)^2/9 + (y-2)^2/4 = 1 ellipse
b) (x+2)^2/25 - (y-1)^2/9 = 1 hyperbola
c) x^2 + 4x = y - 4 parabola
d) (x + 2)^2 + (y-3)^2 = 49 circle
e) (x + 1)^2/25 + (y - 2)^2/25=1 circle ????
f) xy = 3 line or point ??????: Can anybody tell me if I have identified these correctly? I'm not sure.
Thanks!!!
a) (x-3)^2/9 + (y-2)^2/4 = 1 ellipse
b) (x+2)^2/25 - (y-1)^2/9 = 1 hyperbola
c) x^2 + 4x = y - 4 parabola
d) (x + 2)^2 + (y-3)^2 = 49 circle
e) (x + 1)^2/25 + (y - 2)^2/25=1 circle ????
f) xy = 3 line or point ??????
Click here to see answer by Fombitz(1740) |
Question 166028: can someone please help me with this problem:
Determine the vertex of the parabola.
y = -3(x-3)^2 + 2
a. (-2,-3)
b. (2,3)
c. (-3,2)
d. (3,2): can someone please help me with this problem:
Determine the vertex of the parabola.
y = -3(x-3)^2 + 2
a. (-2,-3)
b. (2,3)
c. (-3,2)
d. (3,2)
Click here to see answer by 100076561(1) |
Question 165719This question is from textbook College Algebra
: What are the steps to the following problem,
Instructions: "Write an equation for each ellipse"
Problem: minor axis with length 4: foci at (-5,0),(5,0)
Please Help I cannot seem to figure this one out.
Thank You
This question is from textbook College Algebra
: What are the steps to the following problem,
Instructions: "Write an equation for each ellipse"
Problem: minor axis with length 4: foci at (-5,0),(5,0)
Please Help I cannot seem to figure this one out.
Thank You
Click here to see answer by Fombitz(1740) |
Question 165604: Write the equation of a parabola that:
A. has x=3 as its axis of symmetry and passes through the points (2,5) & (-1,-25).
B. passes through the points (-3,2), (-2,8), and (1,2).
PLEASE show any graphical or algebraic support needed to provide the solution!!!: Write the equation of a parabola that:
A. has x=3 as its axis of symmetry and passes through the points (2,5) & (-1,-25).
B. passes through the points (-3,2), (-2,8), and (1,2).
PLEASE show any graphical or algebraic support needed to provide the solution!!!
Click here to see answer by scott8148(2719) |
Question 165014This question is from textbook
:
Find center and radius of the circle x^2 + y^2 - 10x + 2y + 25 = 0.
Let me know if the following below is done wrong. help is appreciated.
x^2 + y^2 - 10x + 2y = -25
(x^2 - 10x)-(y^2 + 2y)= -25
( x^2 -10x -10) -(y^2 + 2y + 1)= -1 - 10 + 1
(x - 2)^5 -(y + 1)^2 = -10
The center is (2,-1); the radius is -2.
This question is from textbook
:
Find center and radius of the circle x^2 + y^2 - 10x + 2y + 25 = 0.
Let me know if the following below is done wrong. help is appreciated.
x^2 + y^2 - 10x + 2y = -25
(x^2 - 10x)-(y^2 + 2y)= -25
( x^2 -10x -10) -(y^2 + 2y + 1)= -1 - 10 + 1
(x - 2)^5 -(y + 1)^2 = -10
The center is (2,-1); the radius is -2.
Click here to see answer by Alan3354(1178) |
Question 165035This question is from textbook
: f(x)= -2x^2 + 6x - 1
Find the vertex and the axis of symmetry and points.
many thanks!This question is from textbook
: f(x)= -2x^2 + 6x - 1
Find the vertex and the axis of symmetry and points.
many thanks!
Click here to see answer by checkley77(3380) |
Question 164879: Please help with the following problem. Consider the function f(x)=x^2+6x-2. Find h, the x-coordinate of the vertex of this parabola.: Please help with the following problem. Consider the function f(x)=x^2+6x-2. Find h, the x-coordinate of the vertex of this parabola.
Click here to see answer by KnightOwlTutor(215) |
Question 164879: Please help with the following problem. Consider the function f(x)=x^2+6x-2. Find h, the x-coordinate of the vertex of this parabola.: Please help with the following problem. Consider the function f(x)=x^2+6x-2. Find h, the x-coordinate of the vertex of this parabola.
Click here to see answer by jim_thompson5910(9162) |
Question 164752: Since parabolas are symmetrical, how could you find the axis of symmetry using the x-intercepts?: Since parabolas are symmetrical, how could you find the axis of symmetry using the x-intercepts?
Click here to see answer by scott8148(2719) |
Question 163079: I'm having some trouble with this :
What is the equation of a parabola with vertex (0,0) and focus (0,4)
I think it needs to be ax^2 + bx + c = 0 But I'm lost!!! Can anybody get me started???: I'm having some trouble with this :
What is the equation of a parabola with vertex (0,0) and focus (0,4)
I think it needs to be ax^2 + bx + c = 0 But I'm lost!!! Can anybody get me started???
Click here to see answer by Fombitz(1740) |
Question 162750: What is the center of the hyperbola whose equation is [(x+3)^2 / 9] - [(y-3)^2 / 16] = 1?
I know the fomula would be (x-h)^2 / a^2 - (y-k)^2 / b^2 = 1.
Would the answer be(-3,3)? I would love to know the correct answer. Thank you so much for your help!: What is the center of the hyperbola whose equation is [(x+3)^2 / 9] - [(y-3)^2 / 16] = 1?
I know the fomula would be (x-h)^2 / a^2 - (y-k)^2 / b^2 = 1.
Would the answer be(-3,3)? I would love to know the correct answer. Thank you so much for your help!
Click here to see answer by nerdybill(1040) |
Question 162555: 14. What is the standard equation of the circle whose center is (-5,-4) and whose radius is 3?
(x-h)^2 + (y-k)^2 = r^2.
(x-5)^2+(y-4)^2=3^2
I know this problem has sign errors, but i cant see what it is that Im doing wrong. If someone could tell me where my mistake is at, I would really apperciate it :). Thank you.: 14. What is the standard equation of the circle whose center is (-5,-4) and whose radius is 3?
(x-h)^2 + (y-k)^2 = r^2.
(x-5)^2+(y-4)^2=3^2
I know this problem has sign errors, but i cant see what it is that Im doing wrong. If someone could tell me where my mistake is at, I would really apperciate it :). Thank you.
Click here to see answer by checkley77(3380) |
Question 162556: 15. What are the center and radius of the circle whose equation is x^2 + (y-3)^2 = 144?
(x-h)^2 + (y-k)^2 = r^2.
(x-0)^2+(y-3)^2=12^2
(0,-3)
r=12
I know this is incorrect, but I cant find where my mistake is at. If someone could point it out, I would realy apperciate it. Thank you so much.: 15. What are the center and radius of the circle whose equation is x^2 + (y-3)^2 = 144?
(x-h)^2 + (y-k)^2 = r^2.
(x-0)^2+(y-3)^2=12^2
(0,-3)
r=12
I know this is incorrect, but I cant find where my mistake is at. If someone could point it out, I would realy apperciate it. Thank you so much.
Click here to see answer by checkley77(3380) |
Question 162448: Identify the following conic. Is it a circle, parabola, hyperbola, or ellipse. Show why.
x^2 - 4y^2 - 4x - 24y =48
I don't think it's a circle. I've tried completing the square but I don't get an answer that looks right. Please help!!!: Identify the following conic. Is it a circle, parabola, hyperbola, or ellipse. Show why.
x^2 - 4y^2 - 4x - 24y =48
I don't think it's a circle. I've tried completing the square but I don't get an answer that looks right. Please help!!!
Click here to see answer by KnightOwlTutor(215) |
Question 162360: Classify the conic section of each equation.
13. 4x^2 + 3x = y^2 + 2y + 7
I know i need to make it look like...
4x^2 + 3x-y^2 - 2y - 7=0
but im not sure where to go next? Thank you for any help you may have!: Classify the conic section of each equation.
13. 4x^2 + 3x = y^2 + 2y + 7
I know i need to make it look like...
4x^2 + 3x-y^2 - 2y - 7=0
but im not sure where to go next? Thank you for any help you may have!
Click here to see answer by scott8148(2719) |
Question 162358: Classify the conic section of each equation
12. x^2 + 3y^2 = 3
I think this may be a parabola or an ellipse,but im not for sure, and i would love to see the way inwhich you can figure this out. Thank you so much!: Classify the conic section of each equation
12. x^2 + 3y^2 = 3
I think this may be a parabola or an ellipse,but im not for sure, and i would love to see the way inwhich you can figure this out. Thank you so much!
Click here to see answer by scott8148(2719) |
Question 162322: Classify the conic section of each equation.
10. 25x^2 - 9y^2 = 144
I think this may be a circle? But im not for sure and I would love to see the correct steps to finding the answer, i know to rewrite x as x-0 and y as y-0, and i know that 144 is also 12^2,but im not sure where to begin. Thank you!: Classify the conic section of each equation.
10. 25x^2 - 9y^2 = 144
I think this may be a circle? But im not for sure and I would love to see the correct steps to finding the answer, i know to rewrite x as x-0 and y as y-0, and i know that 144 is also 12^2,but im not sure where to begin. Thank you!
Click here to see answer by Fombitz(1740) |
Question 162322: Classify the conic section of each equation.
10. 25x^2 - 9y^2 = 144
I think this may be a circle? But im not for sure and I would love to see the correct steps to finding the answer, i know to rewrite x as x-0 and y as y-0, and i know that 144 is also 12^2,but im not sure where to begin. Thank you!: Classify the conic section of each equation.
10. 25x^2 - 9y^2 = 144
I think this may be a circle? But im not for sure and I would love to see the correct steps to finding the answer, i know to rewrite x as x-0 and y as y-0, and i know that 144 is also 12^2,but im not sure where to begin. Thank you!
Click here to see answer by Alan3354(1178) |
Question 162323: What is the eccentricity of the ellipse whose equation is [(x^2) / 25] +[(y-3)^2 / 9] = 1?
I do know to use e=c/a to help find the correct answer, but I have no clue where to start. I appericiate all you help!: What is the eccentricity of the ellipse whose equation is [(x^2) / 25] +[(y-3)^2 / 9] = 1?
I do know to use e=c/a to help find the correct answer, but I have no clue where to start. I appericiate all you help!
Click here to see answer by Fombitz(1740) |
Question 162321: Calculate the area of the triangle with the following vertices:
(0,-9), (3,-9), and (0,-2)
I believe the answer is 10.5 sq ft. I just want to know if that is correct, if so i know i have done it correctly.If not, I'd like to see the correct steps so i know what i did wrong. Thank you so much!: Calculate the area of the triangle with the following vertices:
(0,-9), (3,-9), and (0,-2)
I believe the answer is 10.5 sq ft. I just want to know if that is correct, if so i know i have done it correctly.If not, I'd like to see the correct steps so i know what i did wrong. Thank you so much!
Click here to see answer by checkley77(3380) |
Question 162033: 20. Classify the conic section of the equation 9x^2 - 3 = 18x + 4y.
A hyperbola
B circle
C ellipse
D line
E Graph is not a conic section.
F parabola
I'm not sure where to start, I really would apperciate your help with how to solve this to come to the correct answer. Thank you so much!: 20. Classify the conic section of the equation 9x^2 - 3 = 18x + 4y.
A hyperbola
B circle
C ellipse
D line
E Graph is not a conic section.
F parabola
I'm not sure where to start, I really would apperciate your help with how to solve this to come to the correct answer. Thank you so much!
Click here to see answer by jim_thompson5910(9162) |
Question 162030: 18. Classify the conic section of the equation x^2 + 2x + y^2 + 6y = 15.
A circle
B ellipse
C hyperbola
D parabola
E point
F line
I'm not sure how I go about classifying this. I appericiate any help you have to offer. Thank you!: 18. Classify the conic section of the equation x^2 + 2x + y^2 + 6y = 15.
A circle
B ellipse
C hyperbola
D parabola
E point
F line
I'm not sure how I go about classifying this. I appericiate any help you have to offer. Thank you!
Click here to see answer by jim_thompson5910(9162) |
Question 162020: 11. What is the center of the ellipse whose equation is (x^2)/25 + (y^2)/4 = 1?
A (25,1)
B (5,1)
C (4,25)
D (4,1)
E (0,0)
F (5,2)
(x-h)^2 / a^2 + (y-k)^2 / b^2 = 1 I tried to used this equation to help, but im really stuck. I appericaite any help you can offer. Thank you!
: 11. What is the center of the ellipse whose equation is (x^2)/25 + (y^2)/4 = 1?
A (25,1)
B (5,1)
C (4,25)
D (4,1)
E (0,0)
F (5,2)
(x-h)^2 / a^2 + (y-k)^2 / b^2 = 1 I tried to used this equation to help, but im really stuck. I appericaite any help you can offer. Thank you!
Click here to see answer by jim_thompson5910(9162) |
Question 162020: 11. What is the center of the ellipse whose equation is (x^2)/25 + (y^2)/4 = 1?
A (25,1)
B (5,1)
C (4,25)
D (4,1)
E (0,0)
F (5,2)
(x-h)^2 / a^2 + (y-k)^2 / b^2 = 1 I tried to used this equation to help, but im really stuck. I appericaite any help you can offer. Thank you!
: 11. What is the center of the ellipse whose equation is (x^2)/25 + (y^2)/4 = 1?
A (25,1)
B (5,1)
C (4,25)
D (4,1)
E (0,0)
F (5,2)
(x-h)^2 / a^2 + (y-k)^2 / b^2 = 1 I tried to used this equation to help, but im really stuck. I appericaite any help you can offer. Thank you!
Click here to see answer by scott8148(2719) |
Question 162018: 7. What is the standard equation of the circle with radius 5, and center (-5,-1)?
A (x-5)^2 + (y-1)^2 = 25
B (x+5)^2 + (y+1)^2 = 25
C (x+5)^2 + (y+5)^2 = 5
D A circle cannot have a center at (-5,-1).
E (x-5)^2 - (y-1)^2 = 25
F (x+5)^2 - (y+1)^2 = 25
I used the formula for a circle and plugged the information in, and I got F for the right answer. But choice D is confusing me and i wanted to make sure F really is correct. Thank you!: 7. What is the standard equation of the circle with radius 5, and center (-5,-1)?
A (x-5)^2 + (y-1)^2 = 25
B (x+5)^2 + (y+1)^2 = 25
C (x+5)^2 + (y+5)^2 = 5
D A circle cannot have a center at (-5,-1).
E (x-5)^2 - (y-1)^2 = 25
F (x+5)^2 - (y+1)^2 = 25
I used the formula for a circle and plugged the information in, and I got F for the right answer. But choice D is confusing me and i wanted to make sure F really is correct. Thank you!
Click here to see answer by scott8148(2719) |
Question 162018: 7. What is the standard equation of the circle with radius 5, and center (-5,-1)?
A (x-5)^2 + (y-1)^2 = 25
B (x+5)^2 + (y+1)^2 = 25
C (x+5)^2 + (y+5)^2 = 5
D A circle cannot have a center at (-5,-1).
E (x-5)^2 - (y-1)^2 = 25
F (x+5)^2 - (y+1)^2 = 25
I used the formula for a circle and plugged the information in, and I got F for the right answer. But choice D is confusing me and i wanted to make sure F really is correct. Thank you!: 7. What is the standard equation of the circle with radius 5, and center (-5,-1)?
A (x-5)^2 + (y-1)^2 = 25
B (x+5)^2 + (y+1)^2 = 25
C (x+5)^2 + (y+5)^2 = 5
D A circle cannot have a center at (-5,-1).
E (x-5)^2 - (y-1)^2 = 25
F (x+5)^2 - (y+1)^2 = 25
I used the formula for a circle and plugged the information in, and I got F for the right answer. But choice D is confusing me and i wanted to make sure F really is correct. Thank you!
Click here to see answer by jim_thompson5910(9162) |
Question 161954: Classify the conic section:
1. x^2 + y^2 = 36
A point
B ellipse
C circle
D hyperbola
E parabol
F line
I think the answer is b,but i just want to make sure thats right? Thank you for your help!
: Classify the conic section:
1. x^2 + y^2 = 36
A point
B ellipse
C circle
D hyperbola
E parabol
F line
I think the answer is b,but i just want to make sure thats right? Thank you for your help!
Click here to see answer by jim_thompson5910(9162) |
Question 161955: Classify the conic section:
x^2 - y^2 = 36
A circle
B hyperbola
C parabola
D point
E line
F ellipse
I think the answer is b,but i just want to make sure thats right? Thank you for your help!
: Classify the conic section:
x^2 - y^2 = 36
A circle
B hyperbola
C parabola
D point
E line
F ellipse
I think the answer is b,but i just want to make sure thats right? Thank you for your help!
Click here to see answer by jim_thompson5910(9162) |
Question 161956: Classify the conic section
5x^2 + 9y^2 = 45
A line
B point
C circle
D parabola
E ellipse
F hyperbola
I believe the answer is E. But I am not 100% sure, and Id love to know if that is correct, and if not, what is? Thank you so much for your time.
: Classify the conic section
5x^2 + 9y^2 = 45
A line
B point
C circle
D parabola
E ellipse
F hyperbola
I believe the answer is E. But I am not 100% sure, and Id love to know if that is correct, and if not, what is? Thank you so much for your time.
Click here to see answer by jim_thompson5910(9162) |
Question 161957: Classify the conic section
x^2 + y^2 = 121
A hyperbola
B ellipse
C point
D circle
E parabola
F line
I believe the answer is B. But I am not 100% sure, and Id love to know if that is correct, and if not, what is? Thank you so much for your time.
: Classify the conic section
x^2 + y^2 = 121
A hyperbola
B ellipse
C point
D circle
E parabola
F line
I believe the answer is B. But I am not 100% sure, and Id love to know if that is correct, and if not, what is? Thank you so much for your time.
Click here to see answer by jim_thompson5910(9162) |
Question 161958: y = 17
A line
B circle
C point
D parabola
E hyperbola
F ellipse
I think the answer would be c. I just wanted to know if that is correct? I thank you for your help!
: y = 17
A line
B circle
C point
D parabola
E hyperbola
F ellipse
I think the answer would be c. I just wanted to know if that is correct? I thank you for your help!
Click here to see answer by jim_thompson5910(9162) |
Question 161959: What is the standard equation of the circle with radius 4, and center (0,0)?
A (x+4)^2 + y^2 = 16
B (x+4)^2 + (y+4)^2 = 16
C (x+4)^2 + (y+4)^2 = 0
D x^2 + y^2 = 0
E ^2 + y^2 = 4
F x^2 + y^2 = 16
I have no idea where to start on this. Id apperciate seeing the steps and the correct answer. Thank you so much for all your help!: What is the standard equation of the circle with radius 4, and center (0,0)?
A (x+4)^2 + y^2 = 16
B (x+4)^2 + (y+4)^2 = 16
C (x+4)^2 + (y+4)^2 = 0
D x^2 + y^2 = 0
E ^2 + y^2 = 4
F x^2 + y^2 = 16
I have no idea where to start on this. Id apperciate seeing the steps and the correct answer. Thank you so much for all your help!
Click here to see answer by jim_thompson5910(9162) |
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