A student sets up a lemonade stand to earn money. The student spends $18.00 on supplies and sells each glass of lemonade for $1.50. Which statement is true?
A. The equation y = 1.5x-18 represents students profit because the initial value of -18 is the cost of the supplies, and the rate of change of 1.5 is the amount earned per glass of lemonade sold.
B. The equation y = 1.5x-18 represents the students profit because the initial value of 1.5 is the amount earned per glass of lemonade sold, and the rate of change of -18 is the cost of the supplies.
C. The equation y = 1.5x + 18 represents the students profit because the initial value of 1.5 is the amount earned per glass of lemonade sold, and the rate of change of 18 is the cost of of the supplies.
D. The equation y = 1.5x + 18 represents the students profit because the initial value of 18 is the cost of the supplies, and the rate of change of -1.5 is the amount earned per glass of lemonade sold.