Question

The range of the function f(x) = x + 5 is {7, 9}. What is the function’s domain?

{2, 4}
{-2, -4}
{12, 14}
{-12, -14}
{0, 5}

Answer 1

** x + 5 = 7 x = 2 ** x + 5 = 9 x = 4 {2,4}