NC.M1.F-IF.8b

Interpret and explain growth and decay rates for an exponential function.

Example Problems
Max is paying for a dinner. The price of the meal is , and he leaves an 18% tip.

Write an expression that could represent how much Max pays in total for the meal.
Jamal is buying a winter coat. The price of the coat is dollars, and it is 40% off for clearance.

Write an expression that could represent how much Jamal pays in total for the coat.
Lila is buying shoes. The price of the shoes is dollars, and there is a 25% discount.

Write an expression that could represent how much Lila pays in total for the shoes.
Khan Academy Resources
Warmup: exponential vs. linear growthRewrite exponential expressionsExponential growth vs. decayGraphing exponential growth & decayGraphs of exponential growthExponential vs. linear modelsInterpret time in exponential modelsEquivalent forms of exponential expressionsInterpret change in exponential models: changing unitsInterpret change in exponential models: with manipulationExponential vs. linear growth over timeInterpret change in exponential modelsLinear vs. exponential growth: from dataGraphing exponential growth & decayInterpreting change in exponential modelsInterpreting change in exponential models: changing unitsGraphs of exponential growthInterpreting time in exponential modelsLinear vs. exponential growth: from dataInterpreting change in exponential models: with manipulationExponential decay introExponential vs. linear models: verbalRewriting exponential expressions as A⋅BᵗEquivalent forms of exponential expressionsModeling with basic exponential functions word problemLinear vs. exponential growth: from data (example 2)
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