# Math

Which function rule represents the data in the table below. Input (x) 1 2 3 4 5 Output (y) 9 15 21 27 33

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1. Did you notice that for every unit change in x, the y increases by 6
so the slope is 6

must be y = 6x + b
use (1,9) to sub in
9 = 6(1) + b ---> b = 3

f(x) = 6x + 3

check my equation to see if you get the data in your table

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posted by Reiny

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