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3.1 Algebra and functions (A-level only)

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Question 73

A precision sensor calculates the deviation D D\,D in the flow rate f f\,f of a lubricant in an industrial engine. This deviation is modeled by the function D(f)=∣4f−3k∣D(f) = |4f - 3k|D(f)=∣4f−3k∣, where k k\,k is a positive constant and f≥0f \ge 0f≥0.

Sketch the graph of D D\,D against fff. Show clearly on your sketch the coordinates of the points where the graph intersects or meets the coordinate axes.

[3]
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3.1 Algebra and functions (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.1 Algebra and functions (A-level only)

281 exam-style questions on CCEA A Level Maths 3.1 Algebra and functions (A-level only), covering 3.1.1 Algebra and functions (A-level only), 3.1.2 Algebra and functions (A-level only), 3.1.3 Algebra and functions (A-level only), 3.1.4 Algebra and functions (A-level only), 3.1.5 Algebra and functions (A-level only), 3.1.6 Algebra and functions (A-level only), 3.1.7 Algebra and functions (A-level only), 3.1.8 Algebra and functions (A-level only), 3.1.9 Algebra and functions (A-level only), and 3.1 Algebra and functions (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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