1. Rebecca drinks a cup of coffee every morning at 5:00 am. The amount of caffeine (in mg) in her body as a result of drinking this coffee is given by the function A (t) since 5:00 am. (:), where t is time in hours a. What is an appropriate domain for this function? = 100( b. Sketch an accurate graph of this function in an appropriate window, labeling axes and scale.

19 Angle A= 2/1 19 10. 20 22 D( 20 Angle B= (17x+1 2/1 Bx + 1r 21 21 Angle C= 2/1 22 Angle D= 2/1

24 3. Find the length of AB. A. 13 17 Text Entry

(2) (2) (2) (2) བྱེ བྱ བྱེ བྱེ བྱེ 1.1 1.2 Reamorata is a student at Nelson Mandela Metropolitan University (NMMU) Vista Campus in Port Elizabeth. ANNEXURE A shows a map/plan of the layout of the campus where he attends classes. Use ANNEXURE A to answer the questions that follow. 1.1.1 Identify the type of map/plan used and write it down. 1.1.2 Give one purpose of the building marked as number 15. 1.1.3 Name the province where Port Elizabeth is situated. 1.1.4 What symbol is used to show parking on the campus? 1.1.5 How many lecture halls are shown on the map/plan. In picture 1 and picture 2 two clocks are shown. 10 PICTURE 1 12 112 2 PICTURE 2 9 00 8 4. 765 5:44 LITE Use the information above to answer the questions that follow. 1.2.1 Name the two time formats used to display the time on the clocks. 1.2.2 Write down, in words, the time displayed on the clock in picture 2. 1.2.3 Convert 13 hours 57 minutes to hours. (2) (2) (2)

rer. -3 What is the domain and Fangeof r?