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Given f(x)=2x-5, what would be the expression for f(t-1)?

A f(t-1)=2t-3.
B f(t-1)=21-5
C
f(t-1)=2t-7

User Skeptic
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1 Answer

2 votes
Answer
C. f(t-1)=2t-7

Step-by-step solution
To find f(t-1) given f(x)=2x-5, we sub (t-1) in for x:
f(x) = 2x-5
f(t-1) = 2(t-1)-5
= 2t-2-5
= 2t-7
User Tyisha
by
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