01-03-2016
Mathematics

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given f(x)= -x+15, what is f(-3) A.-45 B.12 C.18 D.45

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apologiabiology apologiabiology

02-03-2016

so you just subsitute -3 for x
f(-3)=-(-3)+15
f(-3)=3+15
f(-3)=18
answer is C
18

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