Welcome to Westonci.ca, the ultimate question and answer platform. Get expert answers to your questions quickly and accurately. Get quick and reliable solutions to your questions from knowledgeable professionals on our comprehensive Q&A platform. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.

\begin{tabular}{|c|c|}
\hline [tex]$x$[/tex] & [tex]$f(x)$[/tex] \\
\hline -2 & 20 \\
\hline -1 & 0 \\
\hline 0 & -6 \\
\hline 1 & -4 \\
\hline 2 & 0 \\
\hline 3 & 0 \\
\hline
\end{tabular}

Which is an [tex]$x$[/tex]-intercept of the continuous function in the table?

A. [tex]$(-1, 0)$[/tex]
B. [tex]$(0, -6)$[/tex]
C. [tex]$(-6, 0)$[/tex]
D. [tex]$(0, -1)$[/tex]


Sagot :

To find the [tex]$x$[/tex]-intercepts of a continuous function, we need to identify the points where the function crosses the x-axis. These points occur where the function value, \( f(x) \), is equal to zero.

Looking at the table:

[tex]\[ \begin{tabular}{|c|c|} \hline [tex]$x$[/tex] & [tex]$f ( x )$[/tex] \\
\hline
-2 & 20 \\
\hline
-1 & 0 \\
\hline
0 & -6 \\
\hline
1 & -4 \\
\hline
2 & 0 \\
\hline
3 & 0 \\
\hline
\end{tabular}
\][/tex]

We observe the following pairs \((x, f(x))\):
- At \( x = -2 \), \( f(x) = 20 \)
- At \( x = -1 \), \( f(x) = 0 \)
- At \( x = 0 \), \( f(x) = -6 \)
- At \( x = 1 \), \( f(x) = -4 \)
- At \( x = 2 \), \( f(x) = 0 \)
- At \( x = 3 \), \( f(x) = 0 \)

To determine the [tex]$x$[/tex]-intercepts, we look for the rows where \( f(x) = 0 \):
- \( (-1, 0) \)
- \( (2, 0) \)
- \( (3, 0) \)

Therefore, the [tex]$x$[/tex]-intercepts of the function from the given points are:
\( (-1, 0) \), \( (2, 0) \), and \( (3, 0) \).

Among the options provided in the question, \( (-1, 0) \) is an [tex]$x$[/tex]-intercept.

Hence, the [tex]$x$[/tex]-intercept of the continuous function in the table is [tex]\( (-1, 0) \)[/tex].