Actividades de la Unidad III

4.1 List yhe set of ordered pairs and draw the graphical form of the relation with matrix.

                A             b             c              d                                           a             b             c              d

1             T             F              T             F                                1             1          0             1             0

2             T             F              T             F             =                2             1          0             1             0

3             F             T              T             F                                3             0          1             1             0

4.2 For each of the following relations on N, list the ordered pairs that belong to the relation.

R= {(x,y) : 2x + y= 9}

S= {(x,y) :x + y <7}

T={(x,y) :y= x°2}

4.3 Let R be the relation on {1,2,3,4} given by u R v if and only if u + 2v is odd.

Represent R in each of the following ways:

(a)     As a set of ordered pairs

(b)     In graphical form

(c)     In matrix form

SEX	DISCRETE MATHEMATICS	BASIC MATHEMATICS	NAME	ADDRESS
F	B	B	JONES	2 THE MOTTE, NEWTON
F	B	A	McKAY	133 UFF ROAD, READING