A tangent to a circle at point P is a straight line that touches the circle at P. The tangent is perpendicular to the radius which joins the centre of the circle to the point P. As the tangent is ...

As a tangent is a straight line it is described by an equation in ... You are usually given the point - it's where the tangent meets the circle. To find the gradient use the fact that the tangent ...

The tangent line to a graph does not exist at a corner ... Just change the function and the initial value and compute away! Circle, Ellipses and Lissajous Parametric Curves Applet 10.1 Some of the ...

Find \(\ds \lim_{h\to 0}\frac{f(1+h)-f(1)}{h}\) where \(\ds f(x)=\frac{3x+1}{x-2}\text{.}\) What does the result in (a) tell you about the tangent line to the graph ...