SOLUTION: f(x)= x2 - 7x + 10; find (a) f (0), (b) f (5), and (c) f (-2)

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Question 80793: f(x)= x2 - 7x + 10; find (a) f (0), (b) f (5), and (c) f (-2)
Answer by bucky(2189) About Me  (Show Source):
You can put this solution on YOUR website!
Given:
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f%28x%29=+x%5E2+-+7x+%2B+10
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find (a) f (0), (b) f (5), and (c) f (-2)
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Problem (a) tells you to go to the given equation, replace every x with a zero, and then
simplify the result.
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Replace every x with zero to get:
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f%280%29=+0%5E2+-+7%2A0+%2B+10+=+0+%2B+0+%2B+10+=+10
.
So for (a) you have f%280%29+=+10
.
Problem (b) ... same thing only replace every x with 5 to get:
.
f%285%29=+5%5E2+-+7%2A5+%2B+10+=+25+-+35+%2B+10+=+0
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So for (b) you have f%285%29+=+0.
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For problem (c) ... same thing again only this time replace every x with -2 to get:
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f%28-2%29=+%28-2%29%5E2+-+7%2A%28-2%29+%2B+10+=+4+%2B+14+%2B+10+=+28
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So for (c) you have f%28-2%29+=+28
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Hope this helps you to understand what the problem was asking you to do and how you should
go about doing problems like these.
.