3. Use the relation ((1,5), (2,7), (4,2), (5,1), (7,7)], to answer the following questions. a) Is the relation a function? [1] b) State the domain of the relation. [1] c) State the range of the relation. [1] 4. Evaluate each expression. [4] (a) As x -+ +00, 6-3x (b) Asx - 1- +2x-2 5. Sketch the graph of y = -3 -(x - 4) +5. [4] 6. Use the equation of function f. f(x) = 2x2 + 8, to answer the following questions. a) Find the zero(s) of the function. [2] b) State the intercept(s) of the graph of the function. [1] c) Is the function odd, even, or neither? d) Find the average rate of change of the Explain. [2] function from x = =1 to x = 2. Express as a non-decimal exact value in simplest form. [3] e) Find the instantaneous rate of change of the function at x = 3. Approximate to the nearest tenth of a unit. [3]