Answer:
D. (1, 6), (2, 8), (3, 10)
Explanation:
f(x) = 2x + 4
(1, 6)
x = 1
output = 6
f(1)
f(1) = 2(1) + 4 = 6
(2, 8)
x = 2
output = 8
f(2)
f(2) = 2(2) + 4 = 8
(3, 10)
x = 3
output = 10
f(3)
f(3) = 2(3) + 4 = 10
so, the answer is D. (1, 6), (2, 8), (3, 10)