Question

During which time period was the ANNUAL rate of increase of the speed the GREATEST?

A) from year 1 to year 2
B) from year 1 to year 3
C) from year 1 to year 4
D) from year 1 to year 5

Answer 1

A) year 1 to year 2

Explanation:

The increases in speed are found by subtracting the speed from the year before.

1 to 2: 46 -38 = 8

2 to 3: 52 -46 = 6

3 to 4: 57 -52 = 5

4 to 5: 61 -57 = 4

The greatest increase was from year 1 to year 2.