The vertex form of a quadratic function is f (x) = a (x - 1) 2 + k. What is the vertex of each function? Match the function

rule with the coordinates of its vertex.

f (x) = 9 (x + 5) 2 - 6

(6,9)

f (x) = 6 (x + 9) 2 - 5

(5,6)

f (x) = 9 (x - 5) 2 + 6

(-9.-5)

f (x) = 6 (x - 5) 2 - 9

U (-5,-6)

(5.-9)

f (x) = 5 (x - 6) + 9

Done

Intro

f (x) = 9 (x + 5) 2 - 6 (-5,-6)

f (x) = 6 (x + 9) 2 - 5 (-9,-5)

f (x) = 9 (x - 5) 2 + 6 (5,6)

f (x) = 6 (x - 5) 2 - 9. (5,-9)

f (x) = 5 (x - 6) + 9. (6,9)

Step-by-step explanation:

To find the vertex: for the x-coordinate, take the "h" in the parentheses (x + h) and reverse its sign. For the y-coordinate, use the "k" term as-is.