Question

Given the function f (x) = -5x² – 2 + 20, find f (2).

Answer 1

`\text{Plug in 2 into x:}\\\\f(x) = -5(2)^2-2+20\\\\\text{Solve:}\\\\f(x) = -5(2)^2-2+20\\\\f(x) = -5(4)-2+20\\\\f(x) = -20-2+20\\\\f(x)=-22+20\\\\\boxed{f(x)=-2}`