Question

On which interval is the average rate of change for bicycle production the greatest? A) 1950 to 1960 B) 1960 to 1970 C) 1970 to 1980 D) 1980 to 2000

Answer 1

D) 1980 to 2000

Explanation:

Finding the average rate of change in each interval to determine the greatest one.

Production per interval

1950-1960 =
`(21-11) \ million` = 10 million

1960-1970 =
`(41-21)\ million` = 20 million

1970-1980 =
`(71-41)\ million` = 30 million

1980-2000 =
`(161-71)\ million= 90` million

Rate of change (1950-1960)=
`(10)/(11) * 100= 90.90\%`

Rate of change (1960-1970) =
`(20)/(21) * 100= 95.23\%`

Rate of change (1970-1980)=
`(30)/(41) * 100= 73.17\%`

Rate of change (1980-2000)=
`(90)/(71) * 100= 126.76\%`

∴ rate of change between 1980 to 2000 is 126.78%