SOLUTION: find the standard form of the equation of the parabola with the given characteristics and vertex at the origin. horizontal axis and passes through the point (-2,5)

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Question 871887: find the standard form of the equation of the parabola with the given characteristics and vertex at the origin. horizontal axis and passes through the point (-2,5)
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
The given vertex (origin) and point tell you that the vertex must be a largest x value. The value of "a" from standard form is some a%3C0.

Filling in the form, x=a%28y%29%5E2.
a=x%2F%28y%5E2%29
Use the point which is on the parabola;
a=-2%2F%2825%29.

highlight%28x=-%282%2F25%29y%5E2%29