1. Which graph shows the solution for the system of inequalities below? 6. Which expression is equivalent to 3 (x - 4)?? y -3x - 1 B. 3x2 - 24x + 48 C. 9x2 - 72x +144 books. 7. Janes owns x comic books. Derrek owns y comic The number of comic books Jane owns is 1 less than 2 times the number Derrek owns. Together they have a total of 11 comic 2. The amount of medicine in Elizabeth's blood is - books. modeled by the function M (t) = -t2 + 10t, where How many comic books does Derrek own? t is the number of hours after she takes the medicine. How many hours after Elizabeth takes her medicine is the amount of medicine in her blood the highest? B. James is at a gift sale where everything costs $4 A 5 hours (tax included). B. 10 hours James has $50. C. 25 hours James must have at least $28 remaining when he is finished buying gifts. 3. What is the smallest positive integer for x, so that What is the greatest number of gifts James can buy? the value of f (x) = 200(2)* is greater than the value of g(x) = 500x + 400? 4 9. The expression -5t2 + 40t predicts the height, in meters, of an object t seconds after a person 4. What is the y-intercept of the function launches it into the air. Using this expression, how many seconds will it take the object to hit the f ( x) = = (2x - 4)? ground? A. (0, - 4) B. (0, - 2) C. (0, 1) 5. A girl drops a ball from a height of 10 feet. Each 10. The function f(x) = 10,000 - 1,500x can be time the ball hits the ground, it bounces to = its used to predict the number of termites in an area x previous height. Which equation gives y, the height days after the area has been treated. How many of the ball after x bounces? termites are predicted in the area after 5 days? A. y = 103* B. y = 10 () C. y = = (10)*