### Home > APCALC > Chapter 11 > Lesson 11.2.3 > Problem11-72

11-72.

Multiple Choice: No calculator! A company predicts its revenue to grow at a rate of $R^\prime = 5 -\frac { 1 } { 2 }(t − 3)^2$ where time $t$ is measured in months. In how many months should they see a maximum revenue?

1. $0$

1. $1$

1. $3$

1. $5$

1. $6$

Since the equation given represents a derivative, solve:

$0=5-\frac{1}{2}(t-3)^2$