Question

In 1989 a locally-owned car company sold 2,881 cars. 

In 2002, the car sales rose to 4,232. 

What was the average rate of change for the total number of cars sold?

 A. 

1,351 cars per year

 B. 

9.62 cars per year

 C. 

3,557 cars per year

 D. 

104 cars per year​

Answer 1

D. 103 12/13 or about 104

First sort the data into two sets of points, (1989,2881), (2002, 4232).

Now use the slope equation with your numbers.

(y2-y1)/(x2-x1)

(4232-2881)/(2002-1989)

1351/13=

103 12/13 or about 104