问题


There is a single choice question about high school mathematics. Answer the question by replying A, B, C or D.
Question: If g (x) = f (–x) for all real numbers x, and if (3, 2) is a point on the graph of g, which of the following points MUST be on the graph of f ?
A. (3, 2)
B. (3, –2)
C. (–3, 2)
D. (–3, –2)
Answer:

答案

模型 模型答案 正确答案
金声玉亮2.0

C. (–3, 2)
C
deepseekr1

The function \( g(x) = f(-x) \) implies that the graph of \( g \) is the reflection of the graph of \( f \) over the y-axis. Given that \((3, 2)\) is on the graph of \( g \), substituting \( x = 3 \) into \( g(x) \) gives \( g(3) = f(-3) = 2 \). This means \( f(-3) = 2 \), so the point \((-3, 2)\) must lie on the graph of \( f \).

**Answer:** C
C
gpto1 C C
GPT-4o To solve this problem, we need to understand the relationship between the functions \( g(x) \) and \( f(x) \). Given that \( g(x) = f(-x) \) for all real numbers \( x \), and that the point \( (3, 2) \) is on the graph of \( g \), we can use this information to find the corresponding point on the graph of \( f \).

Since \( g(3) = 2 \), we have:
\[ g(3) = f(-3) \]
Therefore:
\[ f(-3) = 2 \]

This means that the point \((-3, 2)\) must be on the graph of \( f \).

The correct answer is:
C. \((-3, 2)\)
C
llama3.1-70B-Instruct

C
C
llama3.1-405B-Instruct

C. The question asks for a point on the graph of f based on a point on the graph of g . The given information states that g ( x ) = f (– x ) for all real numbers x . This means that the y -values of the two graphs will be the same, but the x -values will have opposite signs. If (3, 2) is a point on the graph of g , then (–3, 2) must be a point on the graph of f . The correct answer is (C).
The best answer is C.
C
DeepSeek-Coder-V2 C C
Qwen2-72B-Instruct C. (–3, 2) C
baichuan4 C C
doubao C. (-3, 2). Since g(x) = f(-x), if (3, 2) is on the graph of g, then (-3, 2) must be on the graph of f. C
minimax C. (–3, 2)

Given that g(x) = f(–x), if (3, 2) is on the graph of g, then g(3) = 2. By the definition of g(x), this means that f(–3) = 2. Therefore, the point (–3, 2) must be on the graph of f.
C
kimi C. (–3, 2)

Explanation: Given that \( g(x) = f(-x) \) for all real numbers \( x \), if \( (3, 2) \) is a point on the graph of \( g \), then by definition of \( g \), this means \( g(3) = 2 \). Since \( g(x) = f(-x) \), we can deduce that \( f(-3) = 2 \). Therefore, the point \( (-3, 2) \) must be on the graph of \( f \).
C
wenxinyiyan C

Explanation:
Given that $g(x) = f(-x)$ for all real numbers $x$, this means that the graph of $g(x)$ is a reflection of the graph of $f(x)$ about the y-axis.

Since $(3, 2)$ is a point on the graph of $g$, its reflection about the y-axis will be on the graph of $f$.

The reflection of the point $(3, 2)$ about the y-axis is the point $(-3, 2)$.

Therefore, the point $(-3, 2)$ must be on the graph of $f$.
C
zhipu To determine which point must be on the graph of \( f \), we need to use the relationship given between \( g(x) \) and \( f(x) \). Specifically, \( g(x) = f(-x) \).

Given that the point \((3, 2)\) is on the graph of \( g \), this means:
\[ g(3) = 2 \]

Using the relationship \( g(x) = f(-x) \), we can substitute \( x = 3 \):
\[ g(3) = f(-3) \]

Since \( g(3) = 2 \), it follows that:
\[ f(-3) = 2 \]

This tells us that the point \((-3, 2)\) must be on the graph of \( f \).

Therefore, the correct answer is:
C. \((-3, 2)\)
C
gpto1 C C
deepseekv3 We are given that \( g(x) = f(-x) \) for all real numbers \( x \). Additionally, the point \( (3, 2) \) lies on the graph of \( g \). This means:

\[
g(3) = 2
\]

Substituting \( g(x) = f(-x) \) into the equation, we get:

\[
f(-3) = 2
\]

Thus, the point \( (-3, 2) \) must lie on the graph of \( f \).

The correct answer is:

**C. (–3, 2)**
C