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FUNCTIONS. BY : ELSHA TAMAYO. ITEM. PRICE. Php 30.00 Php 10.00 Php 60.00 Php 20.00. 1 kilo of Rice Horseradish ½ kilo of chicken banana. For every item there corresponds a price. COUNTRY. CAPITAL. Philippines Japan Lebanon Cyprus. Manila Tokyo Beirut Nicosia. FUNCTIONS.
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FUNCTIONS BY : ELSHA TAMAYO
ITEM PRICE Php 30.00 Php 10.00 Php 60.00 Php 20.00 1 kilo of Rice Horseradish ½ kilo of chicken banana For every item there corresponds a price.
COUNTRY CAPITAL Philippines Japan Lebanon Cyprus Manila Tokyo Beirut Nicosia
FUNCTIONS - is a rule that produces a correspondence between a 1st set called the DOMAIN and a 2nd set called the RANGE such that the domain there corresponds to : ONE AND ONLY ONE RANGE
Table 1 DOMAIN RANGE NAME GWA Robert Ruth Sally Samuel 2.4 2.9 1.0 3.0 FUNCTION
Table 2 DOMAIN RANGE NAME Telephone number Robert Ruth Sally Samuel 841-2315 841-2403 838-5106 715-0176 732-1934 NOT A FUNCTION
TYPES OF CORRESPONDENCE a. ONEtoONE correspondence b. ONE toMANY correspondence c. MANY to ONE correspondence d.MULTIPLEcorrespondence
ONE to ONE DOMAIN RANGE 3 5 7 0 1 2 FUNCTION
ONE to MANY DOMAIN RANGE 5 1 2 3 NOT FUNCTION
MANY to ONE DOMAIN RANGE -4 -5 -6 -10 FUNCTION
MULTIPLE DOMAIN RANGE -3 4 5 6 1 5 7 FUNCTION
MULTIPLE DOMAIN RANGE -3 4 5 6 1 5 6 7 NOT FUNCTION
SUMMARY *ONE to ONE and MANY to ONE correspondence are FUNCTIONS. *ONE to MANY is NOT a FUNCTION. *MULTIPLE correspondence can either be a FUNCTION or NOT.
LET’S TRY : Identify which are FUNCTIONS and state what type of correspondence. 1. DOMAIN RANGE 1 7 3 9 5 10 2. DOMAIN RANGE - 2 -1 0 0 2 1 4 3. DOMAIN RANGE 3 1 7 3 9 8 9