Calculate, estimate, and interpret average rate of change for quadratic functions.
Interpret the average rate of change of a quadratic function over an interval
Problem
Interpret the projectile average rate for height\(0~\text{ft}\) at \(t=0\) and\(64~\text{ft}\) at \(t=2\).
Big Picture
What this problem is really about
A contextual average rate becomes meaningful only after the input, output, and their units are assigned correctly. We’ll compare the endpoint height and time with final-minus-initial changes, carry the sign and compound units through the quotient, and describe a net interval average without claiming the motion stayed constant.
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