Answer:
Cost Machine hours
$
High 38,600 17,500
Low (26,200) (9,500)
12,400 8,000
Variable cost per hour (b) = $12,400/8,000 hours
= $1.55 per machine hour
Y = a + bx
At highest points
$38,600 = a + $1.55(17,500)
$38,600 = a + $27,125
$38,000 - $27,125 = a
a = $10,875
Fixed cost is $10,875
Step-by-step explanation:
There is need to obtain the highest cost and highest machine hours, and lowest cost and lowest machine hours. Then, we will deduct the lowest cost and lowest machine hours from the highest cost and highest machine hours. Thereafter, we will divide difference in cost by difference in machine hours in order to obtain variable cost per machine hour.
Finally, we will apply linear equation (Y = a +bx) and make (a) the subject of the formula where a represents fixed cost.