(a)[2]
Use a tangent line to estimate the gradient of the curve when $x = 2$.
(b)[3]
Use a suitable line on the grid to find the solutions of $\dfrac{1}{x} - \dfrac{5x}{2} + 1 = 0$.
Mathematics 4024 · O Level · Graphs of functions
Graphs of functions — practice question
The diagram depicts the graph of $y = \dfrac{1}{x} + \dfrac{x}{2}$.