Using the sub-intervals
, and , what is the trapezoidal approximation of ?
The Trapezoid Rule
The Trapezoid Rule can be used to approximate the area under a curve if the widths,
, of all trapezoids are of equal size:
Over which sub-interval is the average slope a minimum?
Test all answer choices and choose the lowest value. Recall that average slope is akin to saying average rate of change (AROC).