Science:Math Exam Resources/Courses/MATH110/December 2014/Question 05 (c)/Solution 1

Since $h(t)$ represents the height of the rock and from part (a), at $t=0,5$, $h(t)=0$, it starts from $(0,0)$, increases first, then decreases, and finally reaches $(5,0)$.

On the other hand, $h(t)$ is a quadratic function, so that it has a parabola shape.

Taking into consideration, we obtain the graph of $h$ as below