Question

find range and domain of the function f={(x, y) :x, y ∈ N, x+y=10}​

Answer 1

Answer:

f = {(1,9),(2,8),(3,7),(4,6),(5,5),(6,4),(7,3),(8,2),(9,1)}

Domain = {1,2,,3,4,5,6,7,8,9}

Range = {1,2,,3,4,5,6,7,8,9}