functions h and f are graphed. find lim(x→1)(h(x)f(x)). choose 1 answer.

functions h and f are graphed. find lim(x→1)(h(x)f(x)). choose 1 answer.
Answer
Explanation:
Step1: Recall limit - product rule
The limit of a product of two functions is the product of their limits, i.e., $\lim_{x\rightarrow a}(h(x)f(x))=\lim_{x\rightarrow a}h(x)\cdot\lim_{x\rightarrow a}f(x)$ if both $\lim_{x\rightarrow a}h(x)$ and $\lim_{x\rightarrow a}f(x)$ exist.
Step2: Find $\lim_{x\rightarrow1}h(x)$
Looking at the graph of $h(x)$, as $x$ approaches $1$ from both the left - hand side and the right - hand side, $h(x)$ approaches $4$. So, $\lim_{x\rightarrow1}h(x) = 4$.
Step3: Find $\lim_{x\rightarrow1}f(x)$
Looking at the graph of $f(x)$, as $x$ approaches $1$ from both the left - hand side and the right - hand side, $f(x)$ approaches $2$. So, $\lim_{x\rightarrow1}f(x)=2$.
Step4: Calculate $\lim_{x\rightarrow1}(h(x)f(x))$
Using the limit - product rule $\lim_{x\rightarrow1}(h(x)f(x))=\lim_{x\rightarrow1}h(x)\cdot\lim_{x\rightarrow1}f(x)=4\times2 = 8$.
Answer:
8