Evaluate the following function at ×-3
1.f(×)=-3
2.f(×)=2×-7
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Answer:
1. f(x)=3
Put the value of f(x) in x-3
f(3)=3-3=0
2. f(x)=2x-7
Put the value of f(x) in x-3
f(2x-7)=2x-7-3=2x-10
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