A used car dealer is examining how the price at which a car can be sold varies with the car's mileage. What is the independent variable in this relationship?
1 Answer
Dec 10, 2017
It would be the car's mileage.
Explanation:
The price depends on the mileage:
higher mileage = lower price
lower mileage = higher price
Looks like an inverse relationship.
I just made up this equation:
graph{-(1/2)x +10 [-1.35, 21.15, -0.675, 10.575]}
On this graph, the x-axis is mileage and the y-axis is price in thousands of dollars.
In this made-up car world,
if the car has zero mileage, it's worth $10,000;
if the car has 10,000 miles on it, it's worth $5,000:
and if the car has 20,000 miles on it, it's value is zero.
Not realistic, but this is the idea.
