Please help!! Functions

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1. Consider the function f(x) = x2 1. a. Algebraically determine the domain of y = 1/ f (x) . State using set notation. (1 mark). b. Sketch the graph of y = f(x) and y = Vf(x) . (2 marks - Review the Graphing Standards online page found in unit 1.)c. Algebraically determine the coordinates of any invariant points between the two functions. (2 marks) 2. Consider the equation V6 x = x + 4 a. Algebraically determine the restriction for the radicand by stating the possible values for x. (1 mark) h. Determine the solution algebraically and show a verification. (2 marks) c. Determine the solution graphically (provide a sketch). Clearly state the solution. (2 marks) d. Explain an alternate method for solving graphically. (1 mark - Note that using your graphing calculator is not an alternate method.)