August 29th, 2014

8/29/2014

We solved the matching quadratics puzzle from last nights HW

quadratic_matching_game_solution.pdf
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We looked at some examples of quadratic inequalities.

tt6_7.2_quadratic_inequalities_29-8-2014.pdf
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HW: Quadratic and rational inequality questions from 7.2

3 Comments

8/29/2014 02:05:21 pm

Sir how do you tell I the x is inside or outside the line, is that something to do with the zero test ?

Mr R

8/29/2014 02:38:10 pm

Yes that is what the zero test is for.

To think of it another way. After solving the related quadratic equation you have to ask do values of x between the solutions agree with the inequality or is it values outside? You can sub in any x value to check. Zero is just an easy one to use.

The shape of the graph can be used instead of the zero test.

Have a look at the video examples again.

8/30/2014 08:40:37 am

Okie dokie thanks sir

August 29th, 2014

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Mr Roche

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