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Pre-Calculus Practice Problem 13

Pre-Calculus Practice Problem 13 - Unit 1 Activity 1...

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Unit 1, Activity 1, Finding Functions in Situations with Answers Blackline Masters, Advanced Math – Pre-Calculus Page 11 Louisiana Comprehensive Curriculum, Revised 2008 1. The distance required to stop a car depends on how fast it is going when the brakes are applied. independent variable is speed; dependent variable is distance There is a formula d s s = + 2 20 where s > 0. Students should realize that the graph will be found in the first quadrant and should be a curve that is concave up since it takes more distance to sto, the faster one is going. More information can be found at http://www.hintsandthings.co.uk/garage/stopmph.htm 2.The height of a punted football and the number of seconds since it was kicked. The independent variable is time in seconds and the dependent variable is height in feet. The graph should be a parabola opening down and found in the first quadrant. 3. The volume of a sphere is a function of its radius.
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