Stratton, Inc., has collected the following information on its cost of electricity: Machine Hours Total Electricity Costs January 510 $240 February 540 $300 March 360 $205 April 450 $215 May 660 $290 June 690 $300 July 340 $180 August 520 $260 September 240 $120 October 750 $340 November 840 $360 December 600 $320 (a) & (b) Assuming the line intersects the y-axis at $50 and using the August activity levels, calculate the equation of the line that would be drawn for a scattergraph. (Round variable cost to 3 decimal places, e.g. 15.251 and fixed cost to O decimal places, e.g 15.) $ y= eTextbook and Media MH $