Question

part 1: relations & functions

1. {(8,2),(4,−1),(0,−1),(−4,2)}

domain:
range:
function?

Explanation:

Step1: Find domain (all x-values)

List first elements of ordered pairs: 8,4,0,-4

Step2: Find range (all y-values)

List unique second elements: 2,-1

Step3: Check if it's a function

Each x-value maps to one y-value

Answer:

Domain: { -4, 0, 4, 8 }
Range: { -1, 2 }
Function?: Yes