What is the equation of a line in slope-intercept form, given that the slope is 3 and the y-intercept is -2?
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What is the equation of a parabola with its vertex at (2, 4) and passing through the point (1, -1)?
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Find the x-values between 0 and 2π (in radians) for which the cotangent function f(x) = cot x has the characteristics of oscillation, periodicity, and asymptotes.