pretend you are given two points (20,557) and (35,909.5)
and your equation is
y = mx + b, where y is the cost , m is the price per person, and b is the fixed overhead.
sub in the two points and you have two equations in two unknowns.
Carry on from there.
A catering fi rm charges a fi xed cost for overheads and a price per person. It is known
that a party for 20 people costs $557, whereas a party for 35 people costs $909.50.
What is the fixed cost and the cost per person charged by the company?
1 answer
1 answer