Sketch the graph of y=∣x∣+3y = |x| + 3y=∣x∣+3
Explain why ∣x∣+3≥∣x+3∣|x| + 3 \geq |x+3|∣x∣+3≥∣x+3∣ for all real values of xxx.
Practise Edexcel A Level Maths 2.1 The Modulus Function with exam-style questions for A Level Maths. 7 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.