5. Let f(x) = |x| x < 1 x 1 < x < 0 1 x + 3 0 < x (a) What's the domain of f? (b) What's the range of f? (c) Evaluate f( 1 2 ). (d) Graph f as best as you can.

6. Find the domain and range of the following. (a) 2x 3y = 4 (b) y = 3 (c) {(1, 1),(2, 3),(3, 100),(4, 3)}