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Select the correct answer.

The table represents the quadratic function [tex]$g$[/tex]. Which statement is true about the function?

\begin{tabular}{|c|c|c|c|c|c|c|}
\hline
[tex]$x$[/tex] & -5 & -4 & -3 & -2 & -1 & 0 \\
\hline
[tex]$g(x)$[/tex] & -1 & 0 & -1 & -4 & -9 & -16 \\
\hline
\end{tabular}

A. The maximum occurs at the function's [tex]$x$[/tex]-intercept.

B. The maximum occurs at the function's [tex]$y$[/tex]-intercept.

C. The minimum occurs at the function's [tex]$x$[/tex]-intercept.

D. The minimum occurs at the function's [tex]$y$[/tex]-intercept.

Sagot :

Let's analyze the given table step-by-step to determine the true statement about the quadratic function [tex]\( g(x) \)[/tex]:

[tex]\[ \begin{tabular}{|c|c|c|c|c|c|c|} \hline $x$ & -5 & -4 & -3 & -2 & -1 & 0 \\ \hline $g(x)$ & -1 & 0 & -1 & -4 & -9 & -16 \\ \hline \end{tabular} \][/tex]

1. We need to determine where the minimum value of the function [tex]\( g(x) \)[/tex] occurs. The minimum value is the smallest value of [tex]\( g(x) \)[/tex] present in the table.

2. We observe the values of [tex]\( g(x) \)[/tex]:
- When [tex]\( x = -5 \)[/tex], [tex]\( g(x) = -1 \)[/tex]
- When [tex]\( x = -4 \)[/tex], [tex]\( g(x) = 0 \)[/tex]
- When [tex]\( x = -3 \)[/tex], [tex]\( g(x) = -1 \)[/tex]
- When [tex]\( x = -2 \)[/tex], [tex]\( g(x) = -4 \)[/tex]
- When [tex]\( x = -1 \)[/tex], [tex]\( g(x) = -9 \)[/tex]
- When [tex]\( x = 0 \)[/tex], [tex]\( g(x) = -16 \)[/tex]

3. From these values, we see:

- The maximum value of [tex]\( g(x) \)[/tex] is [tex]\( 0 \)[/tex] at [tex]\( x = -4 \)[/tex].
- The minimum value of [tex]\( g(x) \)[/tex] is [tex]\( -16 \)[/tex] at [tex]\( x = 0 \)[/tex].

4. Since the minimum value of the function [tex]\( g(x) \)[/tex] occurs at the point where [tex]\( x = 0 \)[/tex], this point is the y-intercept of the function.

Therefore, the correct statement is:

D. The minimum occurs at the function's y-intercept.