Wednesday, March 4 Use the Rule of 72 to find the length of time to double investments. Graph Reciprocal Functions on a coordinate system.

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Presentation transcript:

Wednesday, March 4 Use the Rule of 72 to find the length of time to double investments. Graph Reciprocal Functions on a coordinate system.

Notes Over 6.6 The Reciprocal Function The Rule of 72 The number of years (y) for money to double in an investment at rate (r) is evaluated by: 1.How long will it take for your money to double if it is invested at an annual interest rate of 4%?

Notes Over 6.6 The Reciprocal Function The Rule of 72 The number of years (y) for money to double in an investment at rate (r) is evaluated by: 2.Suppose Lea’s money doubles in 14.4 years. At what annual interest rate did Lea invest her money?

Notes Over 6.6 The Reciprocal Function Draw a table for each function. Then graph each function on your own paper. xy

Notes Over 6.6 The Reciprocal Function Draw a table for each function. Then graph each function on your own paper.

Notes Over 6.6 The Reciprocal Function Draw a table for each function. Then graph each function on your own paper.

Notes Over 6.6 The Reciprocal Function Draw a table for each function. Then graph each function on your own paper.

Notes Over 6.6 Extra Practice Worksheet 6.6 Pg. 6-43, Lesson 6.6#6-23 Worksheet 6.5/6.6