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Math 120 Quiz 2 Solutions - Math 120 Quiz#2...

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Math 120, Quiz #2 Solutions (Chapters 4-5, 10 pts) 1. (3 pts) Which of the following graphs represent functions? Circle those that are functions. 2. (7 pts) Juliet is moving at constant speed in the xy -plane. She starts at the point (0, −2) and heads in a straight line toward the point (9, 3), reaching it after 10 seconds. (a) Write parametric equations for Juliet’s position t seconds after she starts walking. , (b) When does Juliet cross the x-axis? What is her position at that time?
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