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 logW=logr+klogI\log W = \log r + k \log IlogW=logr+klogI.
Practise Edexcel A Level Maths Regression, Correlation and Hypothesis Testing with exam-style questions for A Level Maths. 100 questions covering Exponential Models, Measuring Correlation, and Hypothesis Testing for Zero Correlation, 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.