What is the average number of pets owned by each student in a class if the data is as follows: 4 students own 2 pets each, 6 students own no pets, and 5 students own 1 pet each?
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What is the equation of a parabola that opens upward, has a vertex at (3, -2), and passes through the point (5, 6)?
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Question: What is the equation of an ellipse centered at (h, k) with semi-major axis a and semi-minor axis b?