Domain:
we know that domain is all possible values of x for which any function is defined
we are given all possible x-values as -10 , -5 , 5 , 10
so, domain is {-10, -5, 5,10}
Range:
we know that domain is all possible values of y for which x is defined
we are given all possible y-values as -10 , -5 , 5 , 10
so, range is {-10, -5, 5,10}
