The modulus functionEdexcel A-Level Maths: Mind map

Exam questions on The modulus function

1. The function $f$ is defined by $f(x)=|2x-1|$.
   Solve $f(x)=3$.2 marks
2. The function $g$ is defined by $g(x)=|3x+2|$.
   State the coordinates where the graph of $y=g(x)$ meets the $y$-axis, and the coordinates of its vertex.2 marks
3. Consider the graph of $y=|2x-1|$ and the straight line $y=x$.
   Solve $|2x-1|=x$.3 marks