1. Using the high-low method of cost estimation, estimate the behavior of the maintenance costs incurred by Yellow Theory Fitness. Express the cost behavior pattern in equation form.
2. 

Table A Hours of Maintenance Maintenance Month Service Costs January 520 $4,470 February 490 4,260 March 300 2,820 April 500 4,250 May 310 2,960 June 480 4,200 July 320 3,000 August 400 3,600 September 470 4,050 October 350 3,300 November 340 3,160 December 320 3,030 Total 4,800 $43, 100