How to Find the Tangent on a Graph in Excel. The tangent is defined as the single point where a straight line meets a curved surface. The tangent can be determined with a collection of ...

As a tangent is a straight line it is described by an equation in the form \(y - b = m(x - a)\). You need both a point and the gradient to find its equation. You are usually given the point - it's ...

On a diagram, draw the circle and the tangent at the point P (3, -4) and draw the radius from the centre (0, 0) to the point P. The gradient of the radius is given by c h a n g e i n y c h a n g e ...