Question

The table shows the heights in inches of trees after they have been planted. Determine the equation which relates x and y.

Height In Pot, x | Height Without Pot, y
30 | 18
36 | 24
42 | 30
48 | 36


A. y = x - 6
B. y = x - 10
C. y = x - 12
D. y = x + 6

Answer 1

C. y equals x minus 12

Explanation:

Answer 2

The answer is C. y = x - 12

Let's check all choices.
A. y = x - 6
18 = 30 - 6
18 = 24
INCORRECT

B. y = x - 10
18 = 30 - 10
18 = 20
INCORRECT

C. y = x - 12
18 = 30 - 12
18 = 18
CORRECT
24 = 36 - 12
24 = 24
CORRECT
...

D. y = x + 6
18 = 30 + 6
18 = 36
INCORRECT