{8}{x^3} - 3\sqrt x\) at the point where \(x = 4\). You can also use this method to find the point of contact of a tangent to a curve when given the equation of the curve and the gradient of the ...

To construct the tangent to a curve at a certain point A, you draw a line that follows the general direction of the curve at that point. An example of this can be seen below. Once the tangent is ...