SOLUTION: Let f(x) = -x - 5 and g(x) = 2x + 3 g(0) Help with this equation would be appreciated.

Algebra ->  Equations -> SOLUTION: Let f(x) = -x - 5 and g(x) = 2x + 3 g(0) Help with this equation would be appreciated.       Log On


   

Question 128685: Let f(x) = -x - 5 and g(x) = 2x + 3
g(0)
Help with this equation would be appreciated.
Answer by bucky(2189) About Me  (Show Source):
You can put this solution on YOUR website!
For this problem the information that
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f%28x%29+=+-x+-5
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is extra information that you don't even need.
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You are given:
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g%28x%29+=+2x+%2B+3
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and you are only asked to find g%280%29. All this is telling you to do is to go to the equation
for g(x) and in that equation substitute 0 for every x. Then you just simplify it.
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so go to the equation for g%28x%29:
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g%28x%29+=+2x+%2B+3
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Substitute 0 for every x in this equation and you have:
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g%280%29+=+2%2A0+%2B+3
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The multiplication of 2 times 0 results in zero, so the equation simplifies to:
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g%280%29+=+%2B3
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and that's the answer for g%280%29 that you were asked to find.
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Hope this helps you to understand what the problem was asking you to do and to see how to do it.
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