The table represents the quadratic functions [tex]\( f(x) \)[/tex] and [tex]\( g(x) \)[/tex].

[tex]\[
\begin{tabular}{|c|c|c|}
\hline
x & f(x) & g(x) \\
\hline
-8 & 16 & 4 \\
\hline
-4 & 4 & 1 \\
\hline
0 & 0 & 0 \\
\hline
4 & 4 & 1 \\
\hline
8 & 16 & 4 \\
\hline
\end{tabular}
\][/tex]

What transformation of [tex]\( f(x) \)[/tex] will produce [tex]\( g(x) \)[/tex]?

A. [tex]\( g(x) = \frac{1}{4} f(x) \)[/tex]

B. [tex]\( g(x) = f\left(\frac{1}{4} x\right) \)[/tex]

C. [tex]\( g(x) = 4 f(x) \)[/tex]

D. [tex]\( g(x) = f(4 x) \)[/tex]



Answer :

To determine which transformation of [tex]\( f(x) \)[/tex] will produce [tex]\( g(x) \)[/tex], let's analyze the given table of values.

The given values are:

[tex]\[ \begin{array}{|c|c|c|} \hline x & f(x) & g(x) \\ \hline -8 & 16 & 4 \\ \hline -4 & 4 & 1 \\ \hline 0 & 0 & 0 \\ \hline 4 & 4 & 1 \\ \hline 8 & 16 & 4 \\ \hline \end{array} \][/tex]

Now, let's consider each proposed transformation and evaluate whether it matches the given table of values:

1. [tex]\( g(x) = \frac{1}{4} f(x) \)[/tex]

- For [tex]\( x = -8 \)[/tex]: [tex]\(\frac{1}{4} f(-8) = \frac{1}{4} \times 16 = 4\)[/tex]
- For [tex]\( x = -4 \)[/tex]: [tex]\(\frac{1}{4} f(-4) = \frac{1}{4} \times 4 = 1\)[/tex]
- For [tex]\( x = 0 \)[/tex]: [tex]\(\frac{1}{4} f(0) = \frac{1}{4} \times 0 = 0\)[/tex]
- For [tex]\( x = 4 \)[/tex]: [tex]\(\frac{1}{4} f(4) = \frac{1}{4} \times 4 = 1\)[/tex]
- For [tex]\( x = 8 \)[/tex]: [tex]\(\frac{1}{4} f(8) = \frac{1}{4} \times 16 = 4\)[/tex]

We see that these values exactly match the [tex]\( g(x) \)[/tex] values in the table. Therefore, [tex]\( g(x) = \frac{1}{4} f(x) \)[/tex] is a valid transformation.

2. [tex]\( g(x) = f\left(\frac{1}{4} x\right) \)[/tex]

- For [tex]\( x = -8 \)[/tex]: [tex]\( f\left(\frac{-8}{4}\right) = f(-2) \)[/tex], but [tex]\( f(-2) \)[/tex] is not provided in the table, so we cannot verify directly.
- Evaluators for other [tex]\( x \)[/tex] values would similarly work via [tex]\( f \)[/tex] at non-provided [tex]\( x \)[/tex] values; hence we cannot use this transformation from the given data.

Given the lack of transformation verification from table data, this cannot be concluded as correct.

3. [tex]\( g(x) = 4 f(x) \)[/tex]

- For [tex]\( x = -8 \)[/tex]: [tex]\( 4 f(-8) = 4 \times 16 = 64 \)[/tex]
- For [tex]\( x = -4 \)[/tex]: [tex]\( 4 f(-4) = 4 \times 4 = 16 \)[/tex]
- For [tex]\( x = 0 \)[/tex]: [tex]\( 4 f(0) = 4 \times 0 = 0 \)[/tex]
- For [tex]\( x = 4 \)[/tex]: [tex]\( 4 f(4) = 4 \times 4 = 16 \)[/tex]
- For [tex]\( x = 8 \)[/tex]: [tex]\( 4 f(8) = 4 \times 16 = 64 \)[/tex]

These values do not match the [tex]\( g(x) \)[/tex] values in the table. Therefore, [tex]\( g(x) = 4 f(x) \)[/tex] is not the correct transformation.

4. [tex]\( g(x) = f(4x) \)[/tex]

- For [tex]\( x = -8 \)[/tex]: [tex]\( f(4 \times -8) = f(-32) \)[/tex], which is not provided.
- Similarly, other [tex]\( x \)[/tex] transformations would lead to [tex]\( f \)[/tex] at non-provided values.

This cannot be validated via provided [tex]\( x \)[/tex] table data.

Given the valid matching computed in the first transformation:

The correct transformation is [tex]\( g(x) = \frac{1}{4} f(x) \)[/tex].