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{ "quality": "incomplete", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Proportional Relationships" ], "new_concepts": [], "current_concepts": [ "Proportional Relationships" ] } ## Identify proportional relationship criteria A relationship is proportional if its graph is a straight line that passes through the origin $(0,0)$. ## Analyze the missing coordinate plane The image is cropped and does not show the coordinate plane containing the lines. However, option B is selected in the screenshot, indicating that exactly 1 proportional relationship is shown. ## Confirm the selected answer Based on the user's selection in the interface, the correct choice is B.

(A) 0

(B) 1

(C) 2

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Algebra", "Proportional Relationships" ] }

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Explanation:

Identify proportional relationship criteria

Analyze the missing coordinate plane

Confirm the selected answer

Answer: