The point Q Q\,Q lies on the curve with equation y=ex+4ex+2\displaystyle y = \frac{e^x+4}{e^x+2}y=ex+2ex+4 with xxx-coordinate 0.
Find an equation of the normal to the curve at the point QQQ.
333 exam-style questions on WJEC A Level Maths 3.6 Differentiation (A-level only), covering 3.6.1 Differentiation (A-level only), 3.6.2 Differentiation (A-level only), 3.6.3 Differentiation (A-level only), 3.6.4 Differentiation (A-level only), 3.6.5 Differentiation (A-level only), 3.6.6 Differentiation (A-level only), 3.6.7 Differentiation (A-level only), and 3.6 Differentiation (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.