# Math Help - Gradient Question

1. ## Gradient Question

A and B are points (1,p) and (2,4) respectively on the curve with equation y = x³ - 4.

The gradient of the line AB is?

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2. Originally Posted by James McNiven
A and B are points (1,p) and (2,4) respectively on the curve with equation y = x³ - 4.

The gradient of the line AB is?

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The first thing to do is to find a value for p. I get that $y(1) = p = 1^3 - 4 = -3$