SOLUTION: Angie is selling lemonade at a concert. She paid $30 for supplies and is selling each cup of lemonade for $2. The function y=2x-30 represents her profit y for each lemonade sold

Algebra ->  Linear-equations -> SOLUTION: Angie is selling lemonade at a concert. She paid $30 for supplies and is selling each cup of lemonade for $2. The function y=2x-30 represents her profit y for each lemonade sold       Log On


   

Question 370481: Angie is selling lemonade at a concert. She paid $30 for supplies and is selling each cup of lemonade for $2. The function y=2x-30 represents her profit y for each lemonade sold x. Find the zero and explain what it means in the context of the situation.
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
If y= 0, then 0 = 2x-30, or x = 15. This means 0 profit, or break-even. Interestingly, if x = 0, then y = -30, which means if he doesn't sell any lemonade then he stands to lose $30!