Question 162443
A hot-dog stand can purchase hot-dogs for $.35 each and buns for $.20 each.
 It has fixed costs of $50. Each hot-dog is sold for $1.
:
write a linear equation for both cost and revenue.
Let x = no. sold; each cost .35+ .20 = .55
Cost = .55x + 50
Rev = 1x
:
Graph both cost and revenue.
{{{ graph( 300, 200, -40, 150, -40, 150, x, .55x+50) }}}
Cost: green
Rev: purple
:
Estimate the break-even point. How about 110 hot dogs sold at $110