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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

Respuesta :

JcAlmighty
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

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