Question

what is the domain and range of each relation? is the relation a function?

c={(1/2,5),(-3,7),(3/2,5),(1/2,-1)}
e={(40,10),(-18,27),(38,10),(57,-15)}

Answer 1

c= domain:(1, -3 , 3 , 1/2 ,) , range: ( 5, 7 , -1) its a function

e= domain:(40,-18, 38, 57) range: ( 10, 27, 10 , -15) its a function