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which of the following is the inverse of \\(y = 12^x\\)? \\(y = \\log_{…

Question

which of the following is the inverse of \\(y = 12^x\\)?

\\(y = \log_{\frac{1}{12}} x\\)

\\(y = \log_{12} \frac{1}{x}\\)

\\(y = \log_x 12\\)

\\(y = \log_{12} x\\)

Explanation:

Response

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"multiple_choice_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Inverse Functions",
"Exponential Inverse"
],
"new_concepts": [],
"current_concepts": [
"Inverse Functions",
"Exponential Inverse",
"Logarithmic Functions"
]
}
</pre_analysis>

<reasoning>

Swap variables to find the inverse

\[
x = 12^y
\]

Solve for y using logarithms

\[
y = \log_{12} x
\]
</reasoning>

<answer>
<mcq-option>(A) \(y = \log_{\frac{1}{12}} x\)</mcq-option>
<mcq-option>(B) \(y = \log_{12} \frac{1}{x}\)</mcq-option>
<mcq-option>(C) \(y = \log_{x} 12\)</mcq-correct>
<mcq-correct>(D) \(y = \log_{12} x\)</mcq-correct>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Multiple Choice",
"knowledge_point": [
"Mathematics",
"Algebra",
"Exponential Inverse"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"multiple_choice_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Inverse Functions",
"Exponential Inverse"
],
"new_concepts": [],
"current_concepts": [
"Inverse Functions",
"Exponential Inverse",
"Logarithmic Functions"
]
}
</pre_analysis>

<reasoning>

Swap variables to find the inverse

\[
x = 12^y
\]

Solve for y using logarithms

\[
y = \log_{12} x
\]
</reasoning>

<answer>
<mcq-option>(A) \(y = \log_{\frac{1}{12}} x\)</mcq-option>
<mcq-option>(B) \(y = \log_{12} \frac{1}{x}\)</mcq-option>
<mcq-option>(C) \(y = \log_{x} 12\)</mcq-correct>
<mcq-correct>(D) \(y = \log_{12} x\)</mcq-correct>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Multiple Choice",
"knowledge_point": [
"Mathematics",
"Algebra",
"Exponential Inverse"
]
}
</post_analysis>