Calculus 10th Edition

$(a)$ $\lim_{x\to4}h(x)=0$ $(b)$ $\lim_{x\to-1}h(x)=-5$
The graph of the function is shown below: $(a)$ $\lim_{x\to4}h(x)$ From the graph, it can be seen that when $x$ approaches $4$ from the left and from the right, $h(x)$ approaches $0$. $\lim_{x\to4}h(x)=0$ $(b)$ $\lim_{x\to-1}h(x)$ From the graph, it can be seen that when $x$ approaches $-1$ from the left and from the right, $h(x)$ approaches $-5$. $\lim_{x\to-1}h(x)=-5$