Question

The height ,h, in feet of a baseball that is popped up into the air is a quadratic function of the time,t, in seconds, since it was hit. An equation that may model this situation is h(t)=4+60t-16t^2. Answers the following questions accurately, rounding to two decimals places when needed.

Answer 1

Answer: $4\ feet$

Step-by-step explanation:

The missing question is: "How high is the ball when it strikes the bat?"

The exercise provides you the following Quadratic function:

$h(t)=4+60t-16t^2$

You know that it represents the height (in feet) of the ball as a function of the time (in seconds) since the ball hit the bat.

Based on this, you can conclude that when the ball strikes the bat the time in seconds is:

$t=0$

Therefore, in order to calculate the height in feet of the ball when it strikes the bat, you need to subsititute $t=0$ into the function and    then evaluate.

So, you get:

 $h(0)=4+60(0)-16(0)^2\\\\h(0)=4$