Math question: What is the constant value 'c' in the function f(x)=c if the graph of the function is a straight horizontal line passing through the point (4, 7)?
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What is the equation of an ellipse with a major axis along the y-axis, center at (0,0), and a minor axis length of 5?
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Math Question: graph the inequality y < 2x + 5 on a coordinate plane. (