QUESTION IMAGE
Question
solve the following absolute value inequality.
\\|2x - 5| > 9\\
\\(x > ?\\) or \\(x < \\)
<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"blank_filling_formatter",
"explain_then_answer",
"tutor"
],
"needs_drawing": true,
"concepts_used": [
"Solving Inequalities",
"Compound Inequalities"
],
"new_concepts": [
"Absolute Value Inequalities"
],
"current_concepts": [
"Absolute Value Inequalities",
"Solving Inequalities",
"Compound Inequalities"
]
}
</pre_analysis>
<reasoning>
Set up the compound inequalities
An absolute value inequality of the form \(|u| > a\) (where \(a > 0\)) splits into a compound inequality using "or":
\[2x - 5 > 9 \quad \text{or} \quad 2x - 5 < -9\]
Solve the first inequality
Using the Solving Inequalities knowledge point:
\[
\]
Solve the second inequality
Using the Solving Inequalities knowledge point:
\[
\]
Combine the solution sets
Using the Compound Inequalities knowledge point, we combine the two individual solutions:
\[x > 7 \quad \text{or} \quad x < -2\]
</reasoning>
<answer>
Solve the following absolute value inequality.
\[|2x - 5| > 9\]
\(x >\) <blank>7</blank> or \(x <\) <blank>-2</blank>
</answer>
<plot>
{
"elements": [
{
"type": "bentinequality",
"params": [{ "x": 7, "operator": ">", "labelText": "x > 7", "strokeColor": "#8C55F2" }]
},
{
"type": "bentinequality",
"params": [{ "x": -2, "operator": "<", "labelText": "x < -2", "strokeColor": "#F2557F" }]
},
{
"type": "point",
"params": [[7, 0]],
"properties": {
"name": "7",
"size": 4,
"color": "white",
"strokeColor": "#8C55F2",
"withLabel": true
}
},
{
"type": "point",
"params": [[-2, 0]],
"properties": {
"name": "-2",
"size": 4,
"color": "white",
"strokeColor": "#F2557F",
"withLabel": true
}
}
]
}
</plot>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Absolute Value Inequalities"
]
}
</post_analysis>
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<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"blank_filling_formatter",
"explain_then_answer",
"tutor"
],
"needs_drawing": true,
"concepts_used": [
"Solving Inequalities",
"Compound Inequalities"
],
"new_concepts": [
"Absolute Value Inequalities"
],
"current_concepts": [
"Absolute Value Inequalities",
"Solving Inequalities",
"Compound Inequalities"
]
}
</pre_analysis>
<reasoning>
Set up the compound inequalities
An absolute value inequality of the form \(|u| > a\) (where \(a > 0\)) splits into a compound inequality using "or":
\[2x - 5 > 9 \quad \text{or} \quad 2x - 5 < -9\]
Solve the first inequality
Using the Solving Inequalities knowledge point:
\[
\]
Solve the second inequality
Using the Solving Inequalities knowledge point:
\[
\]
Combine the solution sets
Using the Compound Inequalities knowledge point, we combine the two individual solutions:
\[x > 7 \quad \text{or} \quad x < -2\]
</reasoning>
<answer>
Solve the following absolute value inequality.
\[|2x - 5| > 9\]
\(x >\) <blank>7</blank> or \(x <\) <blank>-2</blank>
</answer>
<plot>
{
"elements": [
{
"type": "bentinequality",
"params": [{ "x": 7, "operator": ">", "labelText": "x > 7", "strokeColor": "#8C55F2" }]
},
{
"type": "bentinequality",
"params": [{ "x": -2, "operator": "<", "labelText": "x < -2", "strokeColor": "#F2557F" }]
},
{
"type": "point",
"params": [[7, 0]],
"properties": {
"name": "7",
"size": 4,
"color": "white",
"strokeColor": "#8C55F2",
"withLabel": true
}
},
{
"type": "point",
"params": [[-2, 0]],
"properties": {
"name": "-2",
"size": 4,
"color": "white",
"strokeColor": "#F2557F",
"withLabel": true
}
}
]
}
</plot>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Absolute Value Inequalities"
]
}
</post_analysis>