Question

If K = {(x, y)|x - y = 5}, find the corresponding range of y for the domain {0, 2, 4}

Answer 1

x - y = 5
y = x - 5

For domain {0, 2, 4}, range = {0 - 5, 2 - 5, 4 - 5} = {-5, -3, -1}