Question

Betty sets up a lemonade stand and charges $1 per glass. It cost her $50 to set up the stand. Which function gives the profit, p, she makes by selling g glasses of lemonade?
The number of glasses of lemonade, g, that Betty needs to sell to make a profit, p, if the setup cost her $50 is given by the function
f(g) =

Answer 1

First of all you want to figure out the equation to break even/ make just enough to pay back the cost it takes to setup. In this case it would be 1g-50=50 but since you need profit you need to edit the function by simply putting a greater than sign replacing the equal sign 1g-50>50. Or you change the 50 on the right side of the first equation with p. 1g-50=p. And profit is the amount you get after taking 50 away from your total income. so p basically equals the term >50