Question

Can you help me solve my math problem here it is f(x)=4x-9

Answer 1

f(1) = 4(1)-9 = 4-9 = -5

f(2) = 4(2)-9 = 8-9 = -1

f(3) = 4(3)-9 = 12-9 = 3

f(4) = 4(4)-9 = 16-9 = 7

Set would be {-5, -1, 3, 7 .....}