The Height Above Ground, S (In Feet), of a Ball

Multiple Choice

The height above ground, S (in feet) , of a ball thrown vertically into the air is given by , where t is the time in seconds since the ball was thrown. Graph this equation with a graphing utility and the range . Estimate the time at which the ball is at its highest point. Round your answer to two decimal places. ​

A) 9.25
B) 0.22
C) 0.05
D) 18.50
E) 4.63