Questions on Algebra: Conic sections - ellipse, parabola, hyperbola answered by real tutors!

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Question 749790: Write an equation of teh ellipse when : ventrices: (6,12) and ( 6,-18) and covetrices (17,-3) and (-5,-3)
Click here to see answer by stanbon(75887)

Question 749798: find the center of circle with these three points ( -1,3) (-13,3) (-7,9)
Click here to see answer by Alan3354(69443)

Question 749821: find the radius of circle with these three points ( -3,9) (-9,9) (-6,12) and center (-6,9)
Click here to see answer by Alan3354(69443)

Question 749812: find the radius of circle with these three points ( -3,9) (-9,9) (-6,12) and center (-6,9)
Click here to see answer by Alan3354(69443)

Question 749826: find the center of of the circle defined by the equation x^2+y^2+16x-16y+79=0
Click here to see answer by kibauu(44)

Question 750027: find the equation of the ellipse given center @(0,0) and the major axis parallel to x-axis distance between foci 4/3squareroot of 33, passing through (2,1)
Click here to see answer by josgarithmetic(39620)

Question 750112: Which type of conic section is given by the following equation?
(x-4)^2/5^2+(y+3)^2/7^2=1
Click here to see answer by Alan3354(69443)

Question 750088: find the x-intercepts of the parabola with vertex (6,27) and y intercept (0,-81) round to the nearest hundreth
Click here to see answer by josgarithmetic(39620)

Question 750177: I need a little bit of help of these homework questions. You don't have to answer all of them, but I would really appreciate it. Thanks so much! :) I also have a tutoring session today for some help with my teacher, but I'd like to know how to do these before then. I have looked on the internet and in my book, and I just don't know how to do these.
1. For a hyperbola with the equation: xy=12, find the
a. foci
b. asymptotes
c. the focal constant
2. An ellipse with the X intercepts of: (-7,0) and (7,0) and with the Y intercepts of: (0,4) and (0,-4), find an equation for a line that intersects the ellipse at
a. zero points
b. one point
c. two points
3. For the hyperbola with the equation: x^2/36 - y^2/16 = 1, the two x intercepts are: (-6,0) and (6,0)
Find an equation for a circle that intersects the hyperbola at
a. zero points.
b. four points.
c. three points
Click here to see answer by Alan3354(69443)

Question 750263: The parabola given by the equation y=−x^2+12x−34 has its vertex at (h,k) for:
h=
and
k=
Click here to see answer by stanbon(75887)

Question 750389: Please Explain as much as you can I really need help:
Find an equation of the ellipse having the given points as foci and the given sum of the focal radii
(-9, 0); (9, 0); 30
Click here to see answer by KMST(5328)

Question 750433: i dont understand how to graph the vertical ellipse whose center is at (3,2), minor axis is 6, and has a vertex at (3,-3). please help
Click here to see answer by KMST(5328)

Question 750461: this problem is confusing me..... An ellipse has a co-vertices at (4,0) and (-4,0) and foci (0,3) and (0,-3). Find the equation that can be used to describe this ellipse.
Click here to see answer by lwsshak3(11628)

Question 750474: Give the focus, directrix, and axis of symmetry for the parabola X^2=1/8y
Click here to see answer by lwsshak3(11628)

Question 750473: Thank you so much. These are homework problems, and I am a straight-A student. I am not trying to be cheap, I just seriously don't understand it. I have tutoring tomorrow, and need to know how to do these by then. Thanks for your help. It is greatly appreciated! :)
1. The junior prom committee brought in $6300 through ticket sales last year. This year they
had hoped to increase attendance by lowering the ticket price by $3. They ended up selling 48 more tickets for a total of $5970.
a. What was the original price per ticket?
b. How many tickets were sold at the lower price?
2. When Raj shined his flashlight on the wall at an angle, it made an ellipse with a vertical major axis of 34 inches and a horizontal minor axis of 18 inches. Let the center of the ellipse be the origin of a coordinate system. Find an equation for the edge of the ellipse.
Click here to see answer by Alan3354(69443)

Question 750475: What is the equation of ellipse (x^2)/9+(y^2)/49=1 expanded into general form?
Click here to see answer by stanbon(75887)

Question 750521: 9x Squared + 9y squared = 144 what is the center and radius?
Click here to see answer by I am an indian(1)

Question 750606: write an equation of the conic/parabola with vertex at (-4,3) and focus at (-4,-2). I'm having trouble with this section of math and it would be great if you could help me. thank you.
Click here to see answer by josgarithmetic(39620)

Question 750623: Pleas help me...I need it as soon as possible, thank you: A fireboat in the harbor is assisting in putting out a fire in a warehouse along the pier. Find the equation of the parabola that models the path of the water from the fireboat to the fire. The distance from the barrel of the water cannon to the roof of the warehouse is 180 feet and the water shoots up at maximum of 30 feet above the barrel of water cannon.
Click here to see answer by lwsshak3(11628)

Question 750689: what is the focus of the parabola with the equation x^2=48y
Click here to see answer by stanbon(75887)

Question 750690: what is the directrix of the parabola with the equation y^2=12x
Click here to see answer by josgarithmetic(39620)

Question 750805: Find the foci, asymptotes, and focal constant of a parabola with the equation: xy=12
Click here to see answer by stanbon(75887)

Question 750957: Identify conic section and identify whether the graph is parabola, ellipse, hyperbola, or a circle.
4x^2-8x=4(y^2-2y)+7
Click here to see answer by lwsshak3(11628)

Question 750757: How do I write equation for each conic section:
Circle with center at (0 ,-3) and the radius of 5
Parabole with Vertex at (-3,5) and focus at (-1,5)
Ellipse with the vertices at (2,5) (2,-3) and co-vertices at (0,1) (4,1)
Click here to see answer by lwsshak3(11628)

Question 750948: I have 20 zeros and my Algebra teacher said I cant make any of them up. I will litery kill myself if I dont pass. Im done, I need help.
Click here to see answer by Alan3354(69443)

Question 751015: How long is the major axis of the ellipse given by the equation:
(x+7)^2/5^2 + (y-4)^2/8^2=1

Click here to see answer by stanbon(75887)

Question 751026: what conic section is (x-3)^2-y^2=1 considered?

Click here to see answer by Edwin McCravy(20059)

Question 750691: Identify the coordinates fo the vertex and focus, the equations of the axis of symmetry and directrix and the direction of opening of the parabola with equation
y= -2x^2-16x-27
Click here to see answer by lwsshak3(11628)

Question 751050: an archin the form of semi ellipse is 50 ft wide at the base and its greatest height is 20ft.find its height at a distance of 10ft from the centre of the base and its width at a height of 10ft from the base?
Click here to see answer by lwsshak3(11628)

Question 751155: x-1=1/4(y-8)^2
Which conic section is this equation ? Hyperbola? Circle? Ellipse? Parabola?
Click here to see answer by timvanswearingen(106)

Question 751197: Write the equation of the ellipse with foci at (0,3) a co-vertex at (2,0) and center at (0,0)?
Click here to see answer by josgarithmetic(39620)

Question 751108: Classify the conic section:
1. x2 + y2 = 36

2. x2 - y2 = 36

3. 5x2 + 9y2 = 45

4. x2 + y2 = 121

5. y = 17

6. What is the standard equation of the circle with radius 4, and center (0,0)?

7. What is the standard equation of the circle with radius 5, and center (-5,-1)?

8. Name the center and radius of the circle whose equation is x2 + y2 = 49.

9. What are the vertices of the ellipse whose equation is (x2)/25 + (y2)/9 = 1?

10. What are the vertices of the ellipse whose equation is (x2)/9 + (y2)/36 = 1?

11. What is the center of the ellipse whose equation is (x2)/25 + (y2)/4 = 1?

12. What is the center of the ellipse whose equation is (x+1)2 / 4 + (y2)/1 = 1?

13. What is the center of the hyperbola whose equation is (x2) - (y2) = 1?

14. What is the center of the hyperbola whose equation is (x2)/4 - (y2)/9 = 1?

15. What is the center of the hyperbola whose equation is [(x+2)2 / 9] - [(y-2)2 / 16] = 1?

16. How does the graph of the hyperbola whose equation is (x2)/9 - (y2)/25 = 1 open?

17. How does the graph of the hyperbola whose equation is (y2)/4 - (x2)/9 = 1 open?

18. Classify the conic section of the equation x2 + 2x + y2 + 6y = 15.

19. Classify the conic section of the equation 4x2 + 9y2 - 8x - 18y - 19 = 0.

20. Classify the conic section of the equation 9x2 - 3 = 18x + 4y.

Click here to see answer by Edwin McCravy(20059)

Question 751269: I have to complete the square of x^2+6x+8=0
Click here to see answer by josgarithmetic(39620)

Question 751404: what is the distance between (-5,2) and (4,-8)
Click here to see answer by jim_thompson5910(35256)

Question 751407: find a third degree polynomial that has zeros: -2, -4i
Click here to see answer by jim_thompson5910(35256)

Question 751413: use crammer's rule to solve the system of equation: 2x+y=-2 and x-2y=19

Click here to see answer by jim_thompson5910(35256)

Question 751431: find and equation for a hyperbola with vertices at (2,3) and (2,-1) and foci at (2,6) and (2,-4)
Click here to see answer by lwsshak3(11628)

Question 751628: write an equation for the parabola with the given vertex that passes through the given point. vertex: (-4,3) point:(-3,6)

Click here to see answer by tommyt3rd(5050)

Question 751639: Classify the conic section of each equation.

10. 25x2 - 9y2 = 144

11. x2 + y2 = 225

12. x2 + 3y2 = 3

13. 4x2 + 3x = y2 + 2y + 7

Click here to see answer by solver91311(24713)

Question 751709: Write an equation for the circle with the endpoints of the diameter at (-6,4) and (4,8)
Click here to see answer by reviewermath(1029)

Question 751759: What conic section describes the graph of the equation below?
(x + 7)^2 + (y - 4)^2 = 64
Click here to see answer by tommyt3rd(5050)

Question 751759: What conic section describes the graph of the equation below?
(x + 7)^2 + (y - 4)^2 = 64
Click here to see answer by FrankM(1040)

Question 751793: What is -9x^2+4y^2-54x-117=0 in standard form? Please answer quickly i need help. Thank you
Click here to see answer by josgarithmetic(39620)

Question 751914: What are the center and radius of the circle whose equation is x2 + (y-3)2 = 144?
Click here to see answer by Cromlix(4381)

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