Question

[12.2] Write the equation of the parabola that has a vertex (1, -1) and passes through the point (2,5)

Answer 1

since you have the vertex, you can plug it in the vertex form:

y = a(x-h)^2 + k

now you need to find a by using the other point and solving for a....

Answer 2

still need help?

Answer 3

yea whats the equation