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zloy xaker [14]
2 years ago
11

Help me out plesseee!!

Mathematics
1 answer:
nasty-shy [4]2 years ago
3 0

Step-by-step explanation:

the rate of change is officially

(f(x2) - f(x1)) / (x2 - x1)

but for a line function (as we have here) this is totally easy : it is the slope of the line.

and that means it is the factor of x.

in our case this is -3/2.

because the slope of a line is the ratio "y coordinate change / x coordinate change". and that is exactly corresponding to the general rate of change definition above.

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