Chapter 2: Cost behaviour and cost classification 2018 Exercise 4: SurveyKid Co urveyKi costs have been recorded at 2 levels of activity. d Co wishes to develop a method of predicting its total costs in a period. The following past Period 1 Period 2 Number surveys(V) 420 515 Total cost ($) 82,200 90,275 How total cost for a period could be represented? Write in a form of linear equation