3) I consider GRADE ON TEST as a/an variable because it on the no. of hours studied.

answer: huh

step-by-step explanation:

-2

7 - 9 = -2

reversed:

-2 + 9 = 7

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)  

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation: