How would I go about solving these functions?

Quadratic equations and inequalities, variation equations, function notation, systems of equations, etc.
Dak
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How would I go about solving these functions?

Postby Dak » Sat Jul 21, 2012 10:10 pm

I used to be able to do this a year ago, but I completely forgot everything about it, and I can't find anywhere in the index where it specifically teaches you how to tackle this problem.

http://www.dvc.edu/org/departments/assessment-center/College%20Level%20Math%20Sample%20Questions%20-%20Updated.pdf

The problem is #9

For those of you who cannot open a pdf, it is:

If f(x) = 2x + 1 and g(x) = x-1/2, then f(g(x)) =...

I would also appreciate help on solving any other problem on the sample worksheet. Thanks in advance :)

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stapel_eliz
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Postby stapel_eliz » Sun Jul 22, 2012 1:26 am

Dak wrote:The problem is #9

If f(x) = 2x + 1 and g(x) = x-1/2, then f(g(x)) =...

This is asking you to "compose" the two functions. To learn what that is and how to do that, try here.

If you get stuck in the process of simplifying f(x - 1/2), please reply showing how far you have gotten. Thank you! :wink:


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