Enter the value of X and the value of A of the cubic curve into the calculator to determine the tangent slope – MPQ.
The following equation is used to calculate the slope of a tangent line along a cubic curve.
MPQ = (X^3 - a^3) / (x-a)
- Where MPQ is the slope
- x are any points along the cubic curve
- a are points along a tangent line to the curve at x
How to Calculate MPQ?
The following example outlines the steps and information needed to calculate MPQ.
First, determine the value of X. In this example, X will be 5.
Next, determine the value of a. In this case, the value of a will be 3.
Finally, calculate the MPQ using the formula above:
MPQ = (X^3 – a^3) / (x-a)
MPQ = (5^3 – 3^3) / (5-3)
MPQ = 49/1