Question

look at this mapping diagram:
domain
8
6
17
14
-3
4
range
-16
20
10
18
9
2
is this relation a function?
yes
no

Explanation:

Step1: Recall function definition

A relation is a function if every element in the domain maps to exactly one element in the range.

Step2: Check domain elements

Verify each domain value:

• 8 maps to 2
• 6 maps to 9
• 17 maps to 10
• 14 maps to 18
• -3 maps to 20
• 4 maps to -16

Every domain element has only one corresponding range element.

Answer:

yes