Posted by **Momo** on Friday, January 2, 2009 at 1:42pm.

Find an equation of the parabola with vertex at the origin that passes through the point (-36, 2) and opens to the left.

I believe you start with (x-h)^2 = 4p(y-k) and plug in the given point and (0,0), and solve for p.

I got y^2 = 144x. Is this correct?

Thank you!

- Math -
**Reiny**, Friday, January 2, 2009 at 2:57pm
since the vertex is at the origin and the parabola opens to the left, it would have the simple form

x = -ay^2

plug in (-36,2) to get a = 9

so the equation is x = -9y^2

you should have realized your answer was wrong since the given point does not even satisfy your equation.

Secondly it would open to the right.

## Answer This Question

## Related Questions

- Algebra 2 - Use the information provided to write the standard form equation of ...
- algebra - Suppose a parabola has a vertex (-4,7) and also passes through the ...
- College Algebra - Find the standard form of the equation of the parabola with ...
- College Algebra - Find the standard form of the equation of the parabola with ...
- Math - Find an equation of the parabola that has the indicated vertex and whose ...
- math help plz2!!!! - Find an equation of parabola that has the indicated vertex ...
- college algebra - find the equation of a parabola that opens to the right with ...
- algebra - Suppose a parabola has vertex (-4,7) and also passes through the point...
- Algebra2/Trig - Find an equation of the parabola with vertex at the origin. ...
- math - Hello. Please, help me solve this: Parabola y = ax^2 + bx + c passes ...

More Related Questions