The profit of a lemonade stand can be found by the equation P=0.5G−4, where G is the number of glasses sold and P is the profit in dollars. Which statement describes the meaning of the slope in this equation?
A.
Profit decreases by $4 for each glass of lemonade sold.
B.
Profit increases by $0.50 for each glass of lemonade sold.
C.
Profit increases by $1 for every 12 glasses of lemonade sold.
D.
Profit decreases by $1 for every 4 glasses of lemonade sold.