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

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Question 102419: If f(x)=4x-3 find the following:

f(-1)
Answer by bucky(2189) About Me  (Show Source):
You can put this solution on YOUR website!
All that f(-1) is telling you to do is to evaluate the given function of x [that is, f(x)]
when x is equal to -1.
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All you do is take the given function and substitute -1 for every x. Once you do that, you
just reduce the answer.
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So start with f%28x%29=+4x+-+3
.
Then substitute -1 for every x to get:
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f%28-1%29+=+4%2A%28-1%29+-+3
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Multiply out the 4 times -1 and the equation becomes:
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f%28-1%29+=+-4+-+3
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Then combine the -4 and -3 and you have the answer of:
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f%28-1%29+=+-7
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Hope this helps you to understand how to do problems such as these.
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