Given f(x)=-4x^2+3x-11, find f(-4)

Answer 1

f(-4) just means you plug x=-4 into the function:

f(-4) = -4(-4)²+3(-4)-11 = -4(16)+(-12)-11 = -64-12-11 = -76-11 = -87

Therefore, f(-4) = -87

Hope this helped!