QUESTION IMAGE
Question
what is the decreasing interval for this graph?
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</pre_analysis>
<reasoning>
Identify the vertex of the parabola
The graph shows a parabola opening upwards. The lowest point, or vertex, is located at the coordinates \((1, 0)\).
Determine where the function increases
A function is increasing on an interval if the \(y\)-values increase as the \(x\)-values move from left to right. Looking at the graph, to the right of the vertex \(x = 1\), the curve goes upwards.
Write the interval in standard notation
The graph continues upwards to the right indefinitely. Therefore, the interval where the graph is increasing starts at \(x = 1\) and goes to infinity, written as \((1, \infty)\) or \(x > 1\).
</reasoning>
<answer>
\((1, \infty)\) (or \(x > 1\))
</answer>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Free Response",
"knowledge_point": [
"Mathematics",
"Algebra",
"Increasing Intervals"
]
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</post_analysis>
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<pre_analysis>
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"question_count": 1,
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"step_cot",
"explain_then_answer",
"tutor"
],
"needs_drawing": false,
"concepts_used": [],
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"Increasing Intervals",
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"Vertex of Parabola"
],
"current_concepts": [
"Increasing Intervals",
"Quadratic Functions",
"Vertex of Parabola"
]
}
</pre_analysis>
<reasoning>
Identify the vertex of the parabola
The graph shows a parabola opening upwards. The lowest point, or vertex, is located at the coordinates \((1, 0)\).
Determine where the function increases
A function is increasing on an interval if the \(y\)-values increase as the \(x\)-values move from left to right. Looking at the graph, to the right of the vertex \(x = 1\), the curve goes upwards.
Write the interval in standard notation
The graph continues upwards to the right indefinitely. Therefore, the interval where the graph is increasing starts at \(x = 1\) and goes to infinity, written as \((1, \infty)\) or \(x > 1\).
</reasoning>
<answer>
\((1, \infty)\) (or \(x > 1\))
</answer>
<post_analysis>
{
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"question_type": "Free Response",
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"Mathematics",
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"Increasing Intervals"
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