Question

Based on the following tables, which of the following options is a true description of the graphs of f(x)
and g(x)
?

x
f(x)

−2
−6

0 −4

2 −2

4 0


x
g(x)

−2
6
0 4
2 2
4 0
Option #1: One graph is a reflection of the other over the x-axis.

Option #2: One graph is a reflection of the other over the y-axis.

Option #3: One graph is a reflection of the other about the origin.

(1 point)
Option #

1 answer

To analyze the graphs of \( f(x) \) and \( g(x) \) based on the given tables:

Table for \( f(x) \): \[ \begin{array}{|c|c|} \hline x & f(x) \ \hline -2 & -6 \ 0 & -4 \ 2 & -2 \ 4 & 0 \ \hline \end{array} \]

Table for \( g(x) \): \[ \begin{array}{|c|c|} \hline x & g(x) \ \hline -2 & 6 \ 0 & 4 \ 2 & 2 \ 4 & 0 \ \hline \end{array} \]

Examining the Options

  1. Reflection over the x-axis: To be a reflection over the x-axis, \( g(x) \) should equal \( -f(x) \).

    • For \( x = -2\): \( g(-2) = 6 \) and \( -f(-2) = 6 \) (check).
    • For \( x = 0\): \( g(0) = 4 \) and \( -f(0) = 4 \) (check).
    • For \( x = 2\): \( g(2) = 2 \) and \( -f(2) = 2 \) (check).
    • For \( x = 4\): \( g(4) = 0 \) and \( -f(4) = 0 \) (check).

    Since all conditions hold, \( g(x) = -f(x) \), meaning that one graph is a reflection of the other over the x-axis.

  2. Reflection over the y-axis: To be a reflection over the y-axis, we need \( g(x) \) to equal \( f(-x) \).

    • For \( x = -2\): \( g(-2) = 6 \) and \( f(2) = -2 \) (not equal).
    • For the other values, the condition does not hold either. Therefore, this is not true.
  3. Reflection about the origin: To reflect about the origin, \( g(x) \) should equal \( -f(-x) \).

    • For \( x = -2\): \( g(-2) = 6 \) and \( -f(2) = 2 \) (not equal).
    • Similarly, this does not hold for other values either. Thus, this is also not true.

Conclusion

The only true description from the options provided is:

Option #1: One graph is a reflection of the other over the x-axis.