Question

this mapping shows a functional relationship.
when f(x)=4, what is the value of x?
domain
range
2
-3
-1
4
4
0
-1
3
○ 0
○ 2
○ 3
○ 4

Explanation:

Step1: Locate f(x)=4 in the range

Identify the value 4 in the range oval.

Step2: Find corresponding domain value

Trace the arrow from 4 back to its domain input, which is 2.

Answer:

B. 2