The functions u and w are defined as follows u(x)=x-2
w(x)=-x^2+2
Find the value of u (w (3))

The domain of the following relation: r: {(3, 5), (8, 6), (2, 1), (8, 6)} is (1 point) no domain exists {1, 5, 6} {3, 8, 2, 8} {2, 3, 8}