Vertex form is an equation of the form y=a(x-h)2+k. To set up a problem in vertex form, you need the vertex (h,k) and a point (x,y). The vertex is the h and k values in the equation, while the point refers to the x and y values. To solve for the coefficient a, substitute the point values into the vertex form equation and solve for a.

1. Frequently Asked Questions on vertex form Danielle

2. What is it Equation: y=a(x-h)2+k

3. Who do you have to have to set up the problem You need to have a vertex and a point

4. How do we know what is a vertex and what is a point The vertex is h and k the point is x and y

5. How do we do the problem Problem: vertex(3,8) point(4,2) Y=a(x-h)^2+k 4=a(2-3)^2+8 -8 -8 -4 (2-3)^2=1 -4 =-3=a 4=-3(2-3)^2+8