(a)[1]
Given a positive constant $a$, sketch the graph of $y = |3x - 2a|$.
(b)[3]
Using the graph or another suitable method, solve the inequality $|3x - 2a| < x + 5a$.
Mathematics 9709 · AS & A Level · Algebra
Algebra — practice question
Worked solution & mark scheme
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Correct straight-line graph with symmetry, placed in the right position, in both the first and second quadrants, with the key coordinates marked accurately” …
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