Given the directrix of y = 4 and focus of (0, 2), which is the equation of the parabola?

A) y = 1/4 times x^2 + 3

B) y = - 1/4 times x^2 + 3

C) y = 1/4 times x^2 - 3

D) y = - 1/4 times x^2 - 3

Find the equation of the line which passes through the origin and (4,1). enter your solution in the form y

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