What is the domain of the function

f (x) = 2x + 1 when the range is

{-2, 4, 7}?

the domain of the function are {-3/2, 3/2, 3}

Step-by-step explanation:

f (x) = 2x+1

range=-2, 4, 7

f (x) = -2

or, 2x+1=-2

or, x=-3/2

f (x) = 4

2x+1=4

or, x=3/2

f (x) = 7

2x+1=7

or, x=3