The deviation of a high-frequency oscillator from its resonance point is given by the function G(w)=∣3k−4w∣G(w) = |3k - 4w|G(w)=∣3k−4w∣, where w≥0w \ge 0w≥0 represents the angular frequency and kkk is a positive constant.
Sketch the graph of GGG against www. On your sketch, state the coordinates of the points where the graph meets the coordinate axes in terms of kkk.
471 exam-style questions on Edexcel A Level Maths Functions and Graphs, covering 2.1 The Modulus Function, 2.2 Functions and Mappings, 2.3 Composite Functions, 2.4 Inverse Functions, 2.5 y=|f(x)| and y=f(|x|), 2.6 Combining Transformations, and 2.7 Solving Modulus Problems. Each one has a worked solution and a mark scheme showing where the marks go.