BBC

The equation of the tangent to a circle - Higher

As the tangent is a straight line, the equation of the tangent will be of the form \(y = mx + c\). We can use perpendicular gradients to find the value of \(m\), then use the coordinates of P to find ...
TES

Equation and Graph of a Circle KS4

A short Powerpoint to explain The equation and graph of a circle with centre (0, 0). This powerpoint has 6 slides (Including one title and one end slide). Designed for KS4 / GCSE. A bundle is a ...
TES

Solve Simultaneous Equations Graphically including with Circle Equations

notebook, 228.08 KB pdf, 505.78 KB pptx, 13.85 MB pdf, 480.31 KB A collection of resources solving non-linear equations graphically with questions containing circle graphs. The lesson is structured ...
BBC

The equation of a circle – Higher

Find the equation of a circle with radius 3 units and centre (0, 0). The radius, \(r = 3\) and \(r^2 = 9\), so the equation of the circle is \(x^2 + y^2 = 9\). What is the radius of the circle given ...