Step-by-step explanation:
I am not sure who made the dots on the charts, but they are wrong.
y = 1/2 x + 3
domain means all valid values for x.
range means all valid values for y (the functional results).
x = 0
y = 1/2 × 0 + 3 = 3
x = 1
y = 1/2 × 1 + 3 = 3.5
x = 2
y = 1/2 × 2 + 3 = 4
x = 3
y = 1/2 × 3 + 3 = 4.5
x = 4
y = 1/2 × 4 + 3 = 5
so, the range is 3, 3.5, 4, 4.5, 5
y = x - 6
x = 10
y = 10 - 6 = 4
x = 12
y = 12 - 6 = 6
x = 14
y = 14 - 6 = 8
x = 16
y = 16 - 6 = 10
x = 18
y = 18 - 6 = 12
so, the range is 4, 6, 8, 10, 12
