You found that the point of intersection on the graph is (2, 80), and you solved algebraically to find that x = 2 and y = 80. What does the point (2, 80) mean in the context of this problem?

Question

Jiro
Trina
0
1
2
3
4
5
6
7
8
9
10
0
20
40
60
80
100
120
140
160
180
200
Time (weeks)
Number of miles

Jiro bikes 80 miles and Trina bikes 2 miles.

Jiro and Trina both bike 80 miles per week in week 2.

Jiro and Trina both bike 2 miles per week in week 80.

Answer 1

In the context of the problem, the point (2, 80) means that both Jiro and Trina biked for a total of 80 miles in the 2nd week.

This interpretation indicates that at week 2, the total mileage that both Jiro and Trina have biked is 80 miles. Thus, the correct answer is:

Jiro and Trina both bike 80 miles per week in week 2.