Question

(-5, -75) is on the graph of the function f(x) = ax^2. Find the value of a.

Answer 1

a = -3

Explanation:

f(x) = ax^2

(-5, -75) x= -5 and y = -75

-75 = a (-5)^2

-75 = a (25)

Divide each side by 25

-75/25 =a (25)/25

-3 =a