Question

The graph shows a proportional relationship, y = kx.

What is the constant of proportionality, k?
120
100
Distance (miles)
8 8
80
60
40
20
0
(1 hr. 30 miles)
1
(2 hrs, 60 miles)
2
(3 hrs, 90 miles)
(4 hrs, 120 miles)
3
Time (hours)
5

Answer 1

bellow

Explanation:

60 miles / 2 hours = 30 miles per hour

The value of k is 30, which means that for every hour of time, the distance traveled is 30 miles.