a plant can manufacture 50 golf clubs per day at a total daily cost of $5699 and 70 golf clubs per day for a total of $7299. Find the total daily cost, C, of producing x golf clubs.

A) Graph the total daily cost for 0 < x < 200

B) Interpret the slope and y intercept of the cost equation

Solution:

(a)

The graph is a staright line passing through (50, 5699) and (70, 7299)

(b)

Slope = (7299-5699)/(70-50) = 80

It means the cost increases by $80 when number of golfs increases by 1