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 ...

The formula for calculating the volume of a cuboid ... When you are thinking about the volume of a shape, you always use a cubic measurement. A 1cm cube takes up 1cm³ of space.