Answer:
f(x) = -4x²
Step-by-step explanation:
f(x) = ax²
in (0,0), x = 0 and f(x) = 0 as x is the first item in the element and f(x) is the second
plug this into the equation template
0 = a(0)²
0 = 0
this is always true
In (3, -36), x = 3 and f(x) = -36
plug this into the equation template
-36 = a(3)²
-36 = 9a
divide both sides by 9 to get a
a = -4
thus, our equation is f(x) = ax² = f(x) = -4x²
