Average rate of change from x = 0 to x = 1 is

Average rate of change from x = 2 to x = 3 is

The average rate of change of both sections are equal.
-15+9=-6 --------> -6-12=-18
15 represents where he started, then he rises upward 9 and then gets to 6. Afterwards he goes down 12 and ends up at 18 which is 3 feet lower then where he originally started.<span />
They are perpendicular because they both meet at (5.5,-2.5)
A triangular prism is a prism composed of two triangular bases and three rectangular sides