Question

F(x) has domain

✔ {–4, –2, 0, 2, 4}
, and range
✔ {–2, –1, 0, 1, 2}
.

The rule that maps each domain value to its range value is f(x) =
x.

Answer 1

f(x) = 0.5x

Explanation:

note that each of the values in the range is half its corresponding value in the domain

- 4 ÷ 2 = - 2

- 2 ÷ 2 = - 1

0 ÷ 2 = 0

2 ÷ 2 = 1

4 ÷ 2 = 2

then

f(x) =
`(1)/(2)` x = 0.5x