6. What equation will be used in finding the revenue r(x)? A. r()= price per unit + number of units sold B. r(x)= price per unit - number of units sold C. r(x)= price per unit - number of units sold D. r(x)= price per unit = number of units sold 7. Write a quadratic function in standard form that models the revenue from vitamin C sales. A. r(x) = -50x2 + 100x + 400 C. r(x) = -50x2 - 100x - 400 B. r(x) = -50x2 – 100x + 400 D. r(x) = 50x2 + 100x + 400 8. What is the maximum revenue? A. Php 4000 B. Php 4,025 C. Php 4,050 D. Php 4,075 9. Which of the following equations that represents the price of the vitamin C per bottle produces maximum revenue? A. p(x) = 100 + 10x C. p(x) = -100 + 10x B. p(x) = 100 - 10x D. p(x) = -100 - 10x 10. What is the price of the vitamin C per bottle that produces the maximum revenue? A. Php 80 B. Php 85 C.Php 90 D. Php 95
