17 MA-GEM-16-RU A parking garage charges Php 40 for the first 3 hours that a car is parked in the lot. After that, the garage charges an additional Php 10 an hour. Write a piecewise function for the cost of parking a car in this garage for & hours. ut of O a. A(x) = 40x if0 3 O b. 40 A(x) = if0 3 O C . 40x A(x) = if0 3 O d . A(x) = 40 if0 318 MA-GEM-16-RU An Airbnb charges Php 6,000 a night if you rent it for one to three nights. Php 5,500 a night for four to seven nights, and Php 4,500 a night if more than seven nights. Write a piecewise function for the cost of renting this Airbnb in a nights. ut of O a. 6000 if 0 7 O b. 6000x if 0 7 O C. 6000 if 0 719 MA-GEM-17-AA Evaluate the piecewise function for * = 15. -2x + 8 ifx 4 Answer:20 MA-GEM-17-AA Evaluate the piecewise function for x = -2 5x - 9 if x 2 Answer:21 MA-GEM-18-EC Haley works at a jewelry store. She receives a base salary and a commission based on how much she sells. Her income can be modeled by the function below. out of 4250 + 0.05x if 0 50000 f() is her income, and a is her total sales in pesos. To make Php 20,000.00 or more, is Php 200,000.00 worth of sales enough? O a. No, it would be Php 1 250.00 short. O b. Yes, to be exact, it would be Php 20,350.00. O c. Yes, it would even be more than Php 24,000.00 O d. No, it would only reach Php 19,000.00.22 MA-GEM-19-RU Pinnochio's nose increases in size by around 20% each time he lies. His nose was 2 inches long at first. Create an equation to represent the situation. out of o a. f(x) = 2 (0.2 ) 3 Ob. f(x) = 2(1 - 0.2) O c. f(x) = 2(0.2) Od. f(x) = 2(1 + 0.2)23 MA-GEM-21-RU Which of the following is the exponential function f() of this graph? 10 9 ut of -8 -5 -4 -3 -2 -10 2 3 4 5 O a. f(x) = 23 -2 Ob. f(x) = 23 +2 O c. f(x) = 23 - 3 O d. f(x) = 23 + 324 MA-GEM-22-AA Louie drinks a soda that contains 120 mg of caffeine. Each hour, the caffeine in his system decreases by about 12%. How long until he has 33.42 mg of caffeine? ed out of O a. About 15 hours O b. About 25 hours O c. About 10 hours O d. About 20 hours