3 [22 points] The graph of a function f is given below. Use this graph to answer the following questions. Use the interval notation in your solutions. 1. Find the domain and the range of f. 2. Find the r-intercept(s) and the y- intercept of the graph of f. 3. For which values of a is f(x) = -3? 4. On which interval(s) is f(x)