Unit 5 – Section 7 “Modeling Exponential Functions/Regression”

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Presentation transcript:

Unit 5 – Section 7 “Modeling Exponential Functions/Regression” Objectives To write exponential functions using tables, calculators, and graphs.

Soup Left on the Countertop Calculator Directions for TI-83 and TI-84 To enter data: 1. Go to StatEdit 𝐿 1 , enter all data for x. 2. Scroll to 𝐿 2 , enter a; data for y. 3. Go to StatCalc 0: ExpReg To delete data: Go to StatEdit Highlight 𝐿 1 , push Clear Highlight 𝐿 2 , push Clear Questions: What is the temperature of the cup of soup if it’s been left on the countertop for 20 minutes? How long would it take for the temperature to reach 1 degree? What is the % of decrease for this function?

Bacteria Growth Questions: Calculator Directions for TI-83 and TI-84 To enter data: 1. Go to StatEdit 𝐿 1 , enter all data for x. 2. Scroll to 𝐿 2 , enter a; data for y. 3. Go to StatCalc 0: ExpReg To delete data: Go to StatEdit Highlight 𝐿 1 , push Clear Highlight 𝐿 2 , push Clear Questions: How many days would it take for the bacteria to grow up to 5,000? What is the population of bacteria after 10 days? What is the % of the growth factor?

Salaries of Baseball Players Graph the data from the table onto the graph below.

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