If the tangent to the curve, y = x3 + ax – b at the point (1, -5) is perpendicular to the line, - x + y + 4 = 0, then which one of the following points lies on the curve?

If the tangent to the curve, y = x3 + ax – b at the point (1, -5) is

1.	If the tangent to the curve, y = x3 + ax – b at the point (1, -5) is perpendicular to the line, - x + y + 4 = 0, then which one of the following points lies on the curve?
A.	(-2, 1)
B.	(-2, 2)
C.	(2, -1)
D.	(2, -2)
Answer» E.

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If the tangent to the curve, y = x3 + ax – b at the point (1, -5) is perpendicular to the line, - x + y + 4 = 0, then which one of the following points lies on the curve?

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