Question

PLEASE ANSWER ASAP WILL MARK BRAINLIEST!!!

Answer 1

Answer:

option c

Step-by-step explanation:

Quadratic function in vertex form:

y = a(x - h)² + k

Where (h, k) is the vertex

vertex(5 , 12)

y = a(x - 5)² + 12

This passes through (8, 9)

9 = a(8 - 5)²  + 12

9 = a(3)² + 12

9 = 9a + 12

9 - 12 = 9a

9a = -3

a = -3/9

a = -1/2

$Answer:\ y = \dfrac{-1}{3}(x - 5)^{2}+12$