1.. The number of X-rays taken and X-ray costs over the last nine months in Beverly Hospital are given below:

Month	X-Rays Taken	X-Ray Costs
January	6,450	$17,000
February	7,200	$18,400
March	5,200	$14,000
April	4,550	$13,000
May	4,800	$13,600
June	3,200	$10,400
July	3,950	$12,000
August	5,700	$15,400
September	5,950	$17,000

Required:
1.	Using the high-low method, estimate the cost formula for X-ray costs. (Round the "Variable cost per X-ray" to 2 decimal places and the "Fixed cost" to the nearest dollar amount.)

Y =

$

+

$

X

2.	Using the cost formula you derived above, what X-ray costs would you expect to be incurred during a month in which 4,800 X-rays are taken? (Round your intermediate calculations to 2 decimal places and final answers to the nearest dollar amount.)

Variable cost	$
Fixed cost
Total cost	$