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2.5 Data presentation and interpretation

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Question 6

The relationship between the power, WWW, and the current, III, in an electrical component is modeled by W=rIkW = rI^kW=rIk, where r r\,r and k k\,k are constants.

Show that this relationship can be written in the form log⁡W=log⁡r+klog⁡I\log W = \log r + k \log IlogW=logr+klogI.

[3]
Markscheme

2.5 Data presentation and interpretation Questions

  1. A Level
  2. /Maths
  3. /2.5 Data presentation and interpretation

278 exam-style questions on CCEA A Level Maths 2.5 Data presentation and interpretation, covering 2.5.1 Data presentation and interpretation, 2.5.2 Data presentation and interpretation, 2.5.3 Data presentation and interpretation, 2.5.4 Data presentation and interpretation, 2.5.5 Data presentation and interpretation, 2.5.6 Data presentation and interpretation, 2.5.7 Data presentation and interpretation, 2.5.8 Data presentation and interpretation, 2.5.9 Data presentation and interpretation, and 2.5 Data presentation and interpretation. Each one has a worked solution and a mark scheme showing where the marks go.

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