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2.8 Manipulation of Formulas Algebra 1/2 9/13/11 Objective: Solve equations for given variables and use formulas to solve real-world problems.

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Presentation on theme: "2.8 Manipulation of Formulas Algebra 1/2 9/13/11 Objective: Solve equations for given variables and use formulas to solve real-world problems."— Presentation transcript:

1 2.8 Manipulation of Formulas Algebra 1/2 9/13/11 Objective: Solve equations for given variables and use formulas to solve real-world problems.

2 Example 1: Solve the equation for the specified variable. a. 15 = 3n + 6p for nb. 5b + 12c = 9 for b

3 Example 2: Solve the equation for the specified variable. c. C = 2πr Solve for r d. A = 1/2bh Solve for h

4 Example 3: Volume of a cylinder The formula for the volume of a cylinder is. Solve for h. Using the manipulated formula for h, what is the height of a cylindrical swimming pool that has a radius of 12 feet and a volume of 1810 cubic feet?

5 Assignment Pg.120 9-21 odd, 22, 23

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