Y=5x-9; domain = {1, 3, 7}

range = [-4,6,26]

Step-by-step explanation:

y = 5x - 9 ... domain = [1,3,7] ... the domain is ur x values, and I am assuming ur looking for the y values that go with the x ones

y = 5x - 9 ... when ur domain (ur x) = 1

y = 5 (1) - 9

y = 5 - 9

y = - 4

y = 5x - 9 ... when ur domain (x) = 3

y = 5 (3) - 9

y = 15 - 9

y = 6

y = 5x - 9 ... when ur domain (x) is 7

y = 5 (7) - 9

y = 35 - 9

y = 26

so ur range (ur y valus) = [-4,6,26]