Question

1. Identify the domain and range of each relation. Represent the relation with

a mapping diagram. Is the relation a function?
a. {(4.2, 1.5), (5, 2.2), (7, 4.8),(4.2, 0)}
b. {(-1,1),(-2, 2), (4, -4), (7,-7)}

Answer 1

Domain is X’s, Y’s are Range so
a) Domain: 4.2, 5, 7, 4.2
Range: 1.5,2,8,0

b) Domain:-1,-2,4,7
Range: 1,2,-4,-7