The number of X-rays taken and X-ray costs over the last nine months in Beverly Hospital are given below: Month January ... February March .. April .. May June July .. August .... September.. X-Rays Taken X-Ray Costs 6,250 $28,000 7,000 $29,000 5,000 $23,000 4,250 $20,000 4,500 $22,000 3,000 $17,000 3,750 $18,000 5,500 $24,000 5,750 $26,000 Required: 1. Using the high-low method, estimate the cost formula for X-ray costs. 2. Using the cost formula you derived above, what X-ray costs would you expect to be incurred during a month in which 4,600 X-rays are taken