QUESTION IMAGE
Question
- write the equation of the line below in slope-intercept form.
<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"explain_then_answer",
"quick"
],
"needs_drawing": true,
"concepts_used": [
"Slope of a Line",
"Slope-Intercept Form"
],
"new_concepts": [],
"current_concepts": [
"Slope of a Line",
"Slope-Intercept Form"
]
}
</pre_analysis>
<reasoning>
Identify points on the line
\[
(0, -7), \quad (3, -1), \quad (4, 1), \quad (7, 7)
\]
Calculate the slope
\[
m = \frac{1 - (-1)}{4 - 3} = \frac{2}{1} = 2
\]
Write the equation in slope-intercept form
\[
\]
</reasoning>
<answer>
\(y = 2x - 7\)
</answer>
<plot>
{
"elements": [
{
"type": "point",
"params": [[0, -7]],
"properties": {
"name": "(0, -7)",
"size": 3,
"color": "#8C55F2",
"withLabel": true
}
},
{
"type": "point",
"params": [[3, -1]],
"properties": {
"name": "(3, -1)",
"size": 3,
"color": "#8C55F2",
"withLabel": true
}
},
{
"type": "point",
"params": [[4, 1]],
"properties": {
"name": "(4, 1)",
"size": 3,
"color": "#8C55F2",
"withLabel": true
}
},
{
"type": "functiongraph",
"params": [{"js": "2*x - 7", "latex": "y = 2x - 7"}, -8, 8],
"properties": {
"strokeColor": "#8C55F2",
"strokeWidth": 2
}
}
]
}
</plot>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Free Response",
"knowledge_point": [
"Mathematics",
"Algebra",
"Slope-Intercept Form"
]
}
</post_analysis>
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<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"explain_then_answer",
"quick"
],
"needs_drawing": true,
"concepts_used": [
"Slope of a Line",
"Slope-Intercept Form"
],
"new_concepts": [],
"current_concepts": [
"Slope of a Line",
"Slope-Intercept Form"
]
}
</pre_analysis>
<reasoning>
Identify points on the line
\[
(0, -7), \quad (3, -1), \quad (4, 1), \quad (7, 7)
\]
Calculate the slope
\[
m = \frac{1 - (-1)}{4 - 3} = \frac{2}{1} = 2
\]
Write the equation in slope-intercept form
\[
\]
</reasoning>
<answer>
\(y = 2x - 7\)
</answer>
<plot>
{
"elements": [
{
"type": "point",
"params": [[0, -7]],
"properties": {
"name": "(0, -7)",
"size": 3,
"color": "#8C55F2",
"withLabel": true
}
},
{
"type": "point",
"params": [[3, -1]],
"properties": {
"name": "(3, -1)",
"size": 3,
"color": "#8C55F2",
"withLabel": true
}
},
{
"type": "point",
"params": [[4, 1]],
"properties": {
"name": "(4, 1)",
"size": 3,
"color": "#8C55F2",
"withLabel": true
}
},
{
"type": "functiongraph",
"params": [{"js": "2*x - 7", "latex": "y = 2x - 7"}, -8, 8],
"properties": {
"strokeColor": "#8C55F2",
"strokeWidth": 2
}
}
]
}
</plot>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Free Response",
"knowledge_point": [
"Mathematics",
"Algebra",
"Slope-Intercept Form"
]
}
</post_analysis>