Practice!

Sample Problem

Time (s)

0

1

2

3

4

Speed (mph)

0

2

5

8

11

 

A bicyclist’s speed is given by the above table. How fast is the bicyclist going after 6 seconds?

mph

Solution

Based on the table to make the equation first: s = 3t – 1

When t= 6 seconds , s = 3 (6) – 1, s = 17 mph