Rosie checks the Blue Book on the rpice of a car. She finds that if the car is 3 years old it is worth about $18,000.If the car is 5 years old it is worth around $16,200. When it started depreciating it was worth $20,500. Explain how you got your answers for each of these and use sentences to expalin. a. Give an equation that models the depreciation. b. When will the car be worth less than $10,000? c. What is the rate of depreciation?
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
Rosie checks the Blue Book on the rpice of a car. She finds that if the car is 3 years old it is worth about $18,000.If the car is 5 years old it is worth around $16,200. When it started depreciating it was worth $20,500. Explain how you got your answers for each of these and use sentences to expalin.
a. Give an equation that models the depreciation.
b. When will the car be worth less than $10,000?
c. What is the rate of depreciation?
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