Question

Find the range of f(x)=x+3 when the domain (2,4,6)

Answer 1

f(x) = x + 3
f(2) = 2 + 3
f(2) = 5

f(4) = 4 + 5
f(4) = 9

f(6) = 6 + 5
f(6) = 11

{(2, 5), (4, 9), (6, 11)}