Concept explainers
(a)
To write: a linear function to model the price of the car with respect to age.
(a)
Answer to Problem 19PPS
A linear function to model the price of the car with respect to age is,
Explanation of Solution
Given information:
The average retail price in a recent year for a used car is shown in the table at the right.
Calculation:
To find a linear function, find the
Find the
So, a linear function to model the price of the car with respect to age is,
(b)
To find: the interpret the meaning of the slope of the line.
(b)
Answer to Problem 19PPS
The slope of
Explanation of Solution
Given information:
The average retail price in a recent year for a used car is shown in the table at the right.
Calculation:
The slope of
(c)
To predict: the average retail price for a 7 years old car.
(c)
Answer to Problem 19PPS
The average retail price for a 7 years old car is $11273.
Explanation of Solution
Given information:
The average retail price in a recent year for a used car is shown in the table at the right.
Assuming a constant rate of change.
Calculation:
As per above solution, found that the price of the car with respect to age is
So, after 7 years the average retail price for a car is,
So, the average retail price for a 7 years old car is $11273.
Chapter 3 Solutions
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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