Question

If you shift the quadratic parent function, F(x) = x2, down 9 units, what is the equation of the new function?

Answer 1

im thinking C but idk lol

Answer 2

So making a new function off of a parent function is actually fairly simple :)

By moving it down 9 units, you're changing the y-intercept. All parent functions have a meeting point at the origin of the coordinate plane. "Down 9 units" makes it at (0, 9)

f(x) = x^2

H = x
K = y

So put in the -9 for the k

f(x) = x^2 - 9