### Home > CALC > Chapter 5 > Lesson 5.4.1 > Problem5-147

5-147.
1. The function f is continuous on the closed interval [2, 8] and has values that are in the table to the right. Homework Help ✎

1. Using the sub-intervals [2, 5], [5, 7] and [7, 8], what is the trapezoidal approximation of ?

2. On what sub-interval is the average slope a minimum?

 I) [2, 5] II) [5, 7] III) [7, 8]

Test all answer choices and choose the lowest value. Recall that average slope is akin to saying average rate of change (AROC).