QUESTION IMAGE
Question
- theodore purchased a vintage painting from an art dealer worth $480. the dealer noted that the value of the painting will increase by 12 percent per year. what is the growth factor of the painting?
0.12
480
1.12
12
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"new_concepts": [
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<reasoning>
Identify the given values
We are given:
- Initial value of the painting: \(P = \$480\)
- Annual growth rate: \(r = 12\%\)
Define the growth factor
For exponential growth, the growth factor \(b\) is calculated using the formula:
\[b = 1 + r\]
where \(r\) is the growth rate expressed as a decimal.
Convert percentage to decimal
Convert the percentage rate to a decimal:
\[r = 12\% = 0.12\]
Calculate the growth factor
Substitute \(r = 0.12\) into the growth factor formula:
\[b = 1 + 0.12 = 1.12\]
</reasoning>
<answer>
<mcq-option>0.12</mcq-option>
<mcq-option>480</mcq-option>
<mcq-correct>1.12</mcq-correct>
<mcq-option>12</mcq-option>
</answer>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Multiple Choice",
"knowledge_point": [
"Mathematics",
"Algebra",
"Exponential Growth"
]
}
</post_analysis>
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<pre_analysis>
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"step_cot",
"multiple_choice_formatter",
"explain_then_answer",
"tutor"
],
"needs_drawing": false,
"concepts_used": [],
"new_concepts": [
"Exponential Growth",
"Growth Factor"
],
"current_concepts": [
"Exponential Growth",
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"Percentage Conversion"
]
}
</pre_analysis>
<reasoning>
Identify the given values
We are given:
- Initial value of the painting: \(P = \$480\)
- Annual growth rate: \(r = 12\%\)
Define the growth factor
For exponential growth, the growth factor \(b\) is calculated using the formula:
\[b = 1 + r\]
where \(r\) is the growth rate expressed as a decimal.
Convert percentage to decimal
Convert the percentage rate to a decimal:
\[r = 12\% = 0.12\]
Calculate the growth factor
Substitute \(r = 0.12\) into the growth factor formula:
\[b = 1 + 0.12 = 1.12\]
</reasoning>
<answer>
<mcq-option>0.12</mcq-option>
<mcq-option>480</mcq-option>
<mcq-correct>1.12</mcq-correct>
<mcq-option>12</mcq-option>
</answer>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Multiple Choice",
"knowledge_point": [
"Mathematics",
"Algebra",
"Exponential Growth"
]
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</post_analysis>