5. Sketch the graph of the following piece-wise function: x for x 2 6. Iff (x) = and g(x) = find f(x) + g(x). 7. For the following functions, find f(g(x). Simplify your answer. f (x) = x2 + 2x - 3;g(x) =x+1 8. For f(x) = x2 + 2x - 3 find the difference quotient: /(xth)-f(x) h 9. Find the zeros of f (x) = 11x2 - 7x + 1 10. Solve the equation x + -= 3