Functions and Relations Activity

88% -1 3:34 GenMathQ1W1... .. . SOLUTION a. Function. A jeepney can only be assigned one plate number. b. Function. A student may only be issued one LR number. c. Not a function. A teacher may have two or more cellular phones. d. Not a function. There are some pens that have two or three colors of ink contained in only one unit. D Piece-wise Function Some situations can only be described by more than one formula, depending on the value of the independent variable (x-value). EXAMPLE: Promo subscription on mobile plan A user is charged P300 monthly for a particular mobile plan, which includes 100 free text messages. Messages in excess of 100 are charged 2 pesos each. Represent the amount a consumer pays each month as a function of the number of message m sent in a month. ANSWER: Let m represent the number of messages sent. ((m)= 300 If m s 100 (300 + 2(m - 100) 1f m 100 Let's Practice! (Write your answer on the separate sheets provided.) ACTIVITY 1 Directions: Use the given form of each relation to complete the other forms Equation Mapping Table of Values Ordered Pairs Graphing Function or Merely a Relation NNN [(1.1).(2.2). S (3,3)) O