Question

Which function has a domain of (-infinity, infinity) and a range of (-infinity,4]?

A. F(x) = -x^2 + 4

B. F(x) = 2^x + 4

C. F(x) = -4x

D. F(x) = x + 4

Answer 1

A

since it's a quadratic function

it has a reflection and vertical translation