SOLUTION: Hi, I'm having trouble graphing the following parabola: {{{x = 2y^2}}} It seems so simple. I have the vertex (0, 0) and I'm trying to find points and I'm getting the answer w

Algebra ->  Circles -> SOLUTION: Hi, I'm having trouble graphing the following parabola: {{{x = 2y^2}}} It seems so simple. I have the vertex (0, 0) and I'm trying to find points and I'm getting the answer w      Log On


   



Question 370545: Hi, I'm having trouble graphing the following parabola:
x+=+2y%5E2
It seems so simple. I have the vertex (0, 0) and I'm trying to find points and I'm getting the answer wrong. I found (32, 4) and (18, 3)...but these are apparently wrong. Please help!
Thanks for your time :)

Found 2 solutions by stanbon, mananth:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
having trouble graphing the following parabola:
x = 2y^2
-----
Solve for "y":
y^2 = x/2
-----
y = +/-sqrt(x/2)
---
Plotting points:
Let x = 0, they y = 0
Let x = 8, then y = +2 and y = -2
Let x = 32, then y = +4 and y = -4
---
Plot the points: (0,0), (8,2), (8,-2), (32,4), (32,-4)
and draw a parabola that opens to the right.
====================
Cheers,
Stan H.

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
x+=+2y%5E2
...
(0,0)
(2,1)
(2,-1)
(8,-2)
(8,+2)
..
Plot the points and draw the curve.
..
It ia a parabola opening to the right
...
m.ananth@hotmail.ca