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3/8

Step-by-step explanation:

the rate of change is the slope:

.

we can find the slope by choosing any 2 points from the system:

for ex; (8,4) and (-8,-2)

the slope = 4- (-2) / 8 - (-8) = 6 / 16 = 3 / 8

.

so 3 / 8

each side has a different length.  

step-by-step explanation:

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)