If R = {( x , y ) : x , y W, 2 x + y = 8}, then write the domain and range of R .

Question

Philoid · Accepted Answer

Here, R={ (x, y) :x ,yϵ W,2x+y=8}

={(0,8) ,(1,6) ,(2,4) ,(3,2) ,(4,0)}

Now we know, Domain is the set which consist all first elements of ordered pairs in relation R.

So, Domain(R)= {0,1,2,3,4}

Also we know, Range is the set which consist all second elements of ordered pairs in relation R.

So, Range(R)={0,2,4,6,8}