x   f(x)

-1 -7

0 0

1 7

2 14
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1 Answer

f(x)=mx+a where m and a are constants.

Take any two points: (x,f(x))=(0,0) and (1,7):

0=a by substituting x=f(x)=0; 7=m by substituting x=1, f(x)=7 and a=0.

So f(x)=7x. Now check out the other points: x=-1, f(x)=-7✔️; x=2, f(x)=14✔️

by Top Rated User (1.1m points)

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