Question

How do you find the range of s(z) = 5 - 4z given D={-2,0,2}?

Answer 1

R={13,5,-3}

Explanation:

Since D = {-2,0,2},
R = s(D) = {s(-2),s(0),s(2)}
={`(5-4*(-2))`,`(5-4*0)`,`(5-4*2)`}
={13,5,-3}