Find a parametric equation for the parabola described.Focus (-8, 10), directrix x = -2
A. y = - 
t2 + 10, x = t - 5
B. x = - 
t2 + 5, y = t - 10
C. x = - 
t2 - 5, y = t + 10
D. x = 
t2 - 5, y = t + 10
Answer: C
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