Question

i need to help write the equation in vertex form for the parabola with vertex at ( 2,-1) and y - intercept 5

Answer 1

Answer: y= 5/2(x-2)^2 - 1

Explanation:

y=a(x-2)^2 - 5

5=a(0-2)^2 - 5

10=a(-2)^2

10=a4

a=10/4 or 5/2