Question

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

Answer 1

(2,4)

Explanation:

The range is the y values

y = x+5

Let y=7

7 =x+5

Subtract 5

7-5 x+5-5

2=x

Let y= 9

Subtract 5

9-5 x+5-5

4=x

The domain is (2,4)