Question

9. A ball is thrown into the air. The height is modeled by the function h(t) = -4t2 + 12+ + 2. Determine f(1) and explain what it represents

Answer 1

h(1) represents the ball height when one unit of time has elapsed

if the expression is :

`h(t)=-4t^2+12t+2`

You only need to put 1 instead of t

`\begin{gathered} h(1)=-4(1)^2+12(1)+2 \\ h(1)=-4+12+2 \\ h(1)=10 \end{gathered}`

So, 10 is the height when one unit of time has elapsed