Understand the Advantages of Parametric Representations
-Ron Throws a Ball $x = 0 ; y = - 16 t ^ { 2 } + 40 t + 5$

Multiple Choice

Understand the Advantages of Parametric Representations
-Ron throws a ball straight up with an initial velocity of 40 feet per second from a height of 5 feet. Find parametric equations that describe the motion of the ball as a function of time. How long is the ball in the air? When is the ball at its maximum height? What is the maximum height of the ball?

A) $x = 0 ; y = - 16 t ^ { 2 } + 40 t + 5$ ;
$2.619 \mathrm { sec } ;$
$1.25 \mathrm { sec } ;$
$30$ feet
B) $x = 0 ; y = - 16 t ^ { 2 } + 40 t + 5$ ;
$5.239 \mathrm { sec } ;$
$1.25 \mathrm { sec } ;$
$25$ feet
C) $x = 0 ; y = - 16 t ^ { 2 } + 40 t + 5 ;$
$2.368 \mathrm { sec }$
$1.25 \mathrm { sec } ;$
$5.001$ feet
D) $x = 0 ; y = - 16 t ^ { 2 } + 40 t + 5$ ;
$4.736 \mathrm { sec } ;$
$1.25 \mathrm { sec } ;$
$184.439$ feet