### Home > APCALC > Chapter 11 > Lesson 11.3.2 > Problem11-98

11-98.

The table below shows the total number of hamburgers sold at various times during the day for a popular fast food restaurant. Assume the function used to model the data in the table is a continuously increasing function. 11-98 HW eTool (Desmos). Homework Help ✎

 Time 9 a.m. 11 a.m. 12 p.m. 1 p.m. 2 p.m. 4 p.m. 5 p.m. 7 p.m. Hamburgers 3 39 81 251 341 498 611 894

1. At approximately what rate were hamburgers being sold at 10 a.m.? 4p.m.?

$h^\prime\approx\frac{39-3}{11-9}$

2. For what time interval was the rate of sales greatest?

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