CPM Homework Help : CC3MN Problem 1-7

CAR COMPARISON

The following three graphs describe two cars, A and B.

2 points on a first quadrant graph with x-axis labeled, Age, y axis labeled, Cost. Point A has high x and low y. Point B has low x and high y.

2 points on a first quadrant graph with x-axis labeled, Cruising Speed, y axis labeled, Size. Point, A, has low x, and, medium high, y. Point B: has high, x, and low, y.

2 points on a first quadrant graph with x-axis labeled, Passenger Capacity, y axis labeled, Range in miles. Point, A, has high x, and high, y. Point B: has low, x, and low, y.

Decide whether each of the following statements is true or false. Explain your reasoning.

The newer car is more expensive.
Hint (a):
As the age of the car increases, does the cost decrease or increase?
Answer (a):
True

The slower car is larger.
Hint (b):
As the cruising speed increases, does the size of the car decrease or increase?
Answer (b):
True

The larger car is newer.
Hint (c):
Look at all 3 graphs. Which car is larger? Which car is newer? Are they the same car?
Answer (c):
False

The cheaper car carries more passengers.
Hint (d):
Look at all 3 graphs. Which car is cheaper? Which car carries more passengers? Are they the same car?
Answer (d):
True