Questions on Algebra: Coordinate systems, graph plotting, etc answered by real tutors!

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Algebra: Coordinate systems, graph plotting, etc

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Question 585: Find the slope, if it exists, of the given line. x= -2
Click here to see answer by janinecb(25)

Question 583: Find the coordinates of the point of intersection of the equations x = -2 and y =7.
Click here to see answer by janinecb(25)

Question 2234: More hard ones.
1. What is the midpoint of the segment joining (3, 5) and (-6, 11)?
2. What is the distance between the points (-7, 7) and (-4, 11)?
3. What is the distance between the points (-2sqrt7, 10) and (4sqrt7, 8)?

4. What is the directrix of the parabola with the equation y+3=1/10(x+2)^2 ?
5. What is the axis of symmetry of the parabola with the equation
x-4=1/4(y+1)^2 ?

6. Find the vertices of a hyperbola with the equation (x+3)^2-4(y-2)^2=4.
7. Find the foci of a hyperbola with the equation 9y2-72y-16x2-64x-64=0.
8. Find the slopes of the asymptotes of a hyperbola with the equation y^2=36+4x^2.
9. What is the graph of the equation 6x^2-24x-5y^2-10y-11=0 ?
10. What is the graph of the equation 5x^2+2y^2+30x-16y+67=0 ?
11. What is the graph of the equation x^2+y^2-8x+6y+24=0 ?
12. What is the graph of the equation x^2+2x+7-y=0 ?
13. Identify the solutions to the system of equations:
x^2 + y^2 = 25
16x^2 + 25y^2 = 400
14. Identify the solutions to the system of equations:
y^2 - x^2 = 16
x^2 - y^2 = 16
Thanks you guys. Your pretty much are helping me through school.

Click here to see answer by longjonsilver(2297)

Question 2385: Find the distance between the points (3,17) and (-2,5)
Click here to see answer by longjonsilver(2297)

Question 2387: Find the midpoint of the line segment joining the points (3,7) and (-6,1)
Click here to see answer by longjonsilver(2297)

Question 2562: Find the distance between each pair of points whose coordinates are given Express answers in simplest radical form and as decimal approximations to the nearest hundreth
1.(9,7),(1,1)
2.(5,2),(8,-2)
3.(1,-3, (1,4)
Click here to see answer by kiru_khandelwal(79)

Question 2770: A circle with radius 10 and center (h,6) passes through the points (8,-2). Find the possible values of h.
a. 2 or 8
b. 2 or -6
c. -6 or 14
d. 2 or 14
I need your help ....(There are Two)
Click here to see answer by kiru_khandelwal(79)

Question 4000: Find the value(s) of w so that the points (0,3) and (6,w) are 10 units apart.
Click here to see answer by Earlsdon(4900)

Question 4303: name the quadrant in which the point (4, -70) lies
Click here to see answer by rapaljer(3622)

Question 3828: name the quadrant in which the point (4, -70) lies
Click here to see answer by ntnk(49)

Question 6761: Hi~
I am really having issues with the slope intercept equations and would like your assisance with the below question:
The line through (2,-3) that is perpendicular to the line 5x + 3y = 9
Thank you,
-Kate
Click here to see answer by Earlsdon(4900)

Question 8083: Give the coordinates of a point on a coordinate grid that is a distance of the square root of 5 from point 1,3. Is there a formula to find the answer and how do you work out this problem?
Thank you
Click here to see answer by ichudov(404)

Question 8214: 10to the power of6
Click here to see answer by Earlsdon(4900)

Question 8202: I am having a problem with this problem working with line plots an (interviewer is asking 25 people how many children live in thier household) responses 2 1 3 0 4 2 2 1 0 3 2 6 4 3 3 2 1 1 3 0 0 2 1 1 2
Click here to see answer by glabow(165)

Question 8791: when i am trying to get a line that is parallel to a line that is going through a set of given points, when do i use the rule that tells me to use opposite sign and flip the number upside down in my equation?
Click here to see answer by Earlsdon(4900)

Question 8885: what are the cordinates of the x-intercept of the line 2x-5y=6

Click here to see answer by rapaljer(3622)

Question 8883: 2x+8=-16
Click here to see answer by sama91(1)

Question 9431: i only have one qustion why in algebra you have to use variables they are letters that take the place of numbers. how can i get my algebra credit or be proficent in algebra
Click here to see answer by askmemath(368)

Question 9430: i only have one qustion why in algebra you have to use variables they are letters that take the place of numbers. how can i get my algebra credit or be proficent in algebrs
Click here to see answer by rapaljer(3622)

Question 9460: In the notation (-4,8) what is the -4 called? What is the 8 called?
Click here to see answer by rapaljer(3622)

Question 10568: what is -4+2
Click here to see answer by jontull(3)

Question 10828: What is the center and the radius of a circle with the equation:
x^2 + 6x + y^2 - 8y - 11 = 0
Click here to see answer by Earlsdon(4900)

Question 11417: what is the normal body temperature in celsius
Click here to see answer by askmemath(368)

Question 12066: Is the line y= -3x + 2/3 parallel to the line y= -3x+5? How do you work this problem.
Click here to see answer by longjonsilver(2297)

Question 12581: Hi, can you please help me with this equation. The line 2y=4x+3 is drawn on a set of cartesian axes. A) what is the gradient of this line? B) What are the coordinates of the point where the line cuts the y axis?
Click here to see answer by kusha(21)

Question 12545: I cannot figure out how to work this problem: Find the value of k so that the slope of the line is 3/2. (2+k)x+(2-k)y=15 . Any help would be greatly appriciated.
Click here to see answer by longjonsilver(2297)

Question 13316: I am trying to learn how to graph A) y>3 and B) 4x+4(equal to or greater than)4
and C)3x-4y<12. I am horrible at graphing, can you show me how to do these? And could yu show me a sight that can help me learn how to graph that doesn't cost anything?
Click here to see answer by longjonsilver(2297)

Question 13251: What is the difference between a line whose slope is undefined, and a line with a slope of zero?
Click here to see answer by longjonsilver(2297)

Question 13339: How do you identify the location(axis or quadrant) of each point listed?
( Example = 2,-2 is in Quatrant IV 2,0 is on the X axis.

Click here to see answer by akmb1215(68)

Question 13405: Your help is always appreciated.
Is the following relation odd, even, both or neither? x^2 + y^2=16
Thank You.
Click here to see answer by askmemath(368)

Question 13717: I need an example of discreet data changing over time, and i need an explanation on how i did it, and a graph sketched. I dont exactly understand this, I just need an example
Click here to see answer by longjonsilver(2297)

Question 14525: I need to find the coordinates of the point C, halway between the points A(5,1) and B9-2,7)
Click here to see answer by Alwayscheerful(414)

Question 14092: how do i find the slope of a line?
Click here to see answer by venugopalramana(3286)

Question 15158: How do you find the y intercept?
Click here to see answer by rapaljer(3622)

Question 15290: a line passes through a(1,-3) and b(2,7)
write the equation of a line perpendicular to a. how would you go about solving this problem?

Click here to see answer by rapaljer(3622)

Question 16435: how do i solve the problems??? i dont know how to do this can u help me???
Click here to see answer by xxtweedybirdxx(2)

Question 16686: please help me solve to graph three points on the same cartesian coordinate system: (-2), (0,0), (4,0)
Click here to see answer by xcentaur(357)

Question 16960: My problem is that I just can't get this stuff!! Could you please help with this problem? Write the equation of the line, in slope-intercept form, that has a slope of -2 and a y-intercept of 3.Is the Y-intercept (0,3)? Is the answer Y=-2x + 3? Thanks for your help!!
Click here to see answer by venugopalramana(3286)

Question 17069: A line parallel to the graph of y-4=6
Click here to see answer by tjnw79(57)

Question 17135: two sides of a square have the equation 5x+12y-10=0 and 5x+12y+29=0
the co-ordinates of a point on the third side(3,5).find the equation for the other two sides of square
Click here to see answer by venugopalramana(3286)

Question 18035: how do I find slope?

Click here to see answer by pwac(251)

Question 18569: what is the meaning of coordinate and how could i found it in the graph plotting?
Click here to see answer by pwac(251)

Question 18621: show that the area formed by straight lines y=m1x+c1 and y=m2x+c2 and x=0
is ?

Click here to see answer by venugopalramana(3286)

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