Question

What is the range of the function f(x)=2x-3, when the domain is - (-3, -1, 1, 3)

Answer 1

Range is (-9, -5, -1, 3).

Explanation:

Work out f(x) for each value of x:

f(-3) = 2(-3) - 3 = -9

f(-1) = 2(-1) - 3 = -5

f(1) = 2(1) - 3 = -1

f(3) = 2(3) - 3 = 3