Question 6 - A-Level Maths

Exam Board	OCR
Module	H240/02 (Pure Mathematics and Statistics)
Year	2018
Session	June
Topic	Differentiation Applications
Type	Find stationary points

Find the \(x\)-coordinate of the point where the curve crosses the \(x\) axis.
The points \(A\) and \(B\) lie on the curve and have \(x\) coordinates 2 and 4. Show that the line \(A B\) is parallel to the \(x\)-axis.
Find the coordinates of the turning point on the curve.
Determine whether this turning point is a maximum or a minimum.