Respuesta :

skylera482

Answer the answer is 2:)

Step-by-step explanation:

Answer:

D. 8

Step-by-step explanation:

To find rate of change

m=y2-y1

    ------

    x2-x1

I'm gonna use coordinates (7,56) and (9,72)

m= 72-56

    ---------

     9-7

m=    16

        ---

         2

m=8

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