1. The problem statement, all variables and given/known data The input range of a particular sensor is from 0-6 units and it's output is modelled by the equation O = ƒ(I) = 1+2I+0.005I^2-0.00833I^3 Ideally the output should be relate to the input by the straight line equation (ISL) if the form O=kI+a A) give the law if the ideal straight line for the sensor B) Plot a graph of the non linearity (N)I, against input I C) from the graph, determine the maximum non linearity of the sensor, expressed as a percentage if output span D) Attempt to determine the maximum percentage non linearity by mathematics. 2. Relevant equations O = kI+a 3. The attempt at a solution I not sure where to start here to be honest. A) O = 1+ 2I + 0.0025I so ideal straight line equation is O= 2.0025I + 1? B) I know once the above equation is right it's a case of inputting the input range into it to get the graph plot points so in put 0 would give output of 1 and so on but this is all based the correctness of the equation in A. C) depends on A+B D) depends on A+B Any guidance on the above would be greatly appreciated.