Wednesday

August 27, 2014

August 27, 2014

Posted by **Abbey** on Sunday, March 21, 2010 at 8:18pm.

Vertex: (2,3) Point: (0,2)

I do not know how to do this! Please explain!! Thank You

- Math -
**Reiny**, Sunday, March 21, 2010 at 8:23pmWrite it in vertex form

y = a(x-2)^2 + 3, the only thing we don't know is the a value

sub in the given point

2 = a(-2)^2 + 3

-1 = 4a

a = -1/4

so

y = (-1/4)(x-2)^2 + 3

expand it if you need it in general form

**Related Questions**

Math - Find the quadratic function that has the indicated vertex and whose graph...

Math - Write the standard form of the quadratic function that has the indicated ...

math help plz2!!!! - Find an equation of parabola that has the indicated vertex ...

College Algebra - A quadratic function has its vertex at the point (-9,8). The ...

math - A quadratic function has its vertex at the point (-9,3). The function ...

Math - 1. Write a quadratic function in intercept form whose graph has the given...

College Algebra - The graph of a quadratic function f(x) is shown above. It has...

Math - The graph of a quadratic function has vertex(3,-4) and passes through the...

Math - The graph of a quadratic function has vertex(3,-4) and passes through the...

Calculus - Find expressions for the quadratic functions whose graphs are shown. ...