Respuesta :

psychicide

Answer:

the rate of change is 15

Step-by-step explanation:

(1, 15)

(3, 45)

now we need to find 2

if the rate is 15, 2 should be 30

1, 15

+1, +15

2, 30

+1, +15

3, 45

the rate of change is 15

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