Statistical Scattergraph. Keefer Company production management is interested in determining the fixed and variable components of supplies cost, a semivariable cost, as measured against direct labor hours. Data for the first ten months of the current year follow:

Labor Supplies Month Hours Cost January. 450 $600 February. 475 700 March. 500 750 April. 550 650 Month Hours Cost May.

. 725

$900 June.

. 750 800 July.

. 675 825 August.

. 525 725 September.

. 600 775 October.

. 625 850 Required: Graph the data provided and determine the fixed and variable components of supplies cost.