use the table of values of f to estimate the limit. let f(x) = x^2 + 8x - 2, find lim(x→2) f(x).

use the table of values of f to estimate the limit. let f(x) = x^2 + 8x - 2, find lim(x→2) f(x).
Answer
Explanation:
Step1: Recall the concept of limit
The limit of a function $f(x)$ as $x$ approaches $a$ is the value that $f(x)$ approaches as $x$ gets arbitrarily close to $a$ from both the left - hand side and the right - hand side.
Step2: Analyze the function $f(x)=x^{2}+8x - 2$
We can also find the limit by direct substitution since $f(x)$ is a polynomial function and is continuous everywhere. Substitute $x = 2$ into $f(x)$: [ \begin{align*} f(2)&=2^{2}+8\times2 - 2\ &=4 + 16-2\ &=18 \end{align*} ] As $x$ approaches $2$ from the left - hand side ($x = 1.9,1.99,1.999$) and the right - hand side ($x=2.001,2.01,2.1$), the values of $f(x)$ should approach the value of $f(2)$.
Answer:
C. $\begin{array}{|c|c|c|c|c|c|c|}\hline x&1.9&1.99&1.999&2.001&2.01&2.1\\hline f(x)&16.810&17.880&17.988&18.012&18.120&19.210\end{array}$ ; limit = $18.0$