Entry Exam Category: College Admission Exams
Course: Accuplacer
Exam: Accuplacer Quantitative Reasoning Algebra and Statistics Practice Test
Practice Question
In the xy-plane above, the circle has center (0, 0) and AB is a diameter of the circle. What is the equation of the line passing through points A and B?

Answer Choices
- A: y=-2/3 x
- B: y=2/3 x
- C: y=3/2 x
- D: y=4x
Correct Answer: B
Rationale: Diameter through (0,0) means the line passes through the origin. y=2/3 x is a plausible slope through origin.