SOLUTION: if f (x) = 4x - 3, find the following: f (-1)

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Question 58231: if f (x) = 4x - 3, find the following:
f (-1)
Found 2 solutions by checkley71, rcmcc:
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
F(X)=4X-3
F(-1)=4*-1-3
F(-1)=-4-3
F(-1)=-7

Answer by rcmcc(152) About Me  (Show Source):
You can put this solution on YOUR website!
substitute in -1 in all places where x is in the function
so
f(x)=4x-3
f(x)=4(-1)-3
f(x)=-4-3
f(x)=-7
f(-1) = -7