Question

What is the range of the following relation {(-1, 1), (-2, 2), (-3, 3), (-4, 4), (-5, 5)}

Answer 1

relation is similar to function, in the way that it asigns values of a set to elements of another (or same) set. The values of the set that are being asigned to original set are called range. In the case of the ordered pairs this range elements are the second nummber in the (a,b), so b. To find the set called "range" just take all the second values from (a,b) elements. So it would be {1,2,3,4,5}