Answer
Domain: All real numbers.
Range: $(-\infty , 0]$
Work Step by Step
Given ģ\approx$$ r(t) = -0.25(t-7)^2. $$ The parabola opens downward as we can see from the graph. Its vertex gives the maximum point. The domain and range are given by:
Domain: All real numbers.
Range: $(-\infty , 0]$
