linear functions and inequalities in two variables

Simplificatation, evaluation, linear equations, linear graphs, linear inequalities, basic word problems, etc.
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linear functions and inequalities in two variables

Postby georgiepeorgie » Sat Jul 04, 2009 10:00 pm

Haven't the foggiest...Given P(x)=4x+7, write P(-2+h)-P(-2) in simplest form

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Postby stapel_eliz » Sun Jul 05, 2009 11:44 am

To learn how to evaluate functions (at either numbers, like "-2", or expressions, such as "-2 + h"), try here.

Once you've studied the lesson, please attempt the exercise. Don't try to do everything at once. First, evaluate P at x = -2. Then evaluate P at x = -2 + h. Then do the subtraction.

If you get stuck, please reply showing your steps so far. Thank you! :D

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