1) Match each function to its correct graph: A B f(x) = x- +1 g(x) = 1 13 2 -1 (x+1)(x -1) h(x) = x' +1 (x+ 1)(x -1) C D E j(x) = 1 x'+2x+1 2) Solve. Leave your answers in exact simplified form: 2x - 1 x -2 x+4 x - 3 3) Use an interval chart to find the solution: x +1 x+2 x-7\fApplication (14 marks): 5) The graph of a function y = f (x) is shown on the right. Sketch the graph of y =1/f (x) on the same axes. 13 12. 11 10 -10 -9 8 -7 6/ -4 3 5 6 7 8 9 107) The Research In Motion company estimates that the profit/ item functions for a BlackBerry is given by: P(x) = 20x- +30x+160 , where x is the X number of phones produced in thousands, and C is in dollars $. a. How many phones must be produced for the Revenue of a BlackBerry to be $150? b. What will be the Marginal Revenue at a level of production of 5 000 phones?8] Describe what happens to the value of x} = 1" +: as 1:- cc. 1- _ 9] Explain the difference between the aciuticn to the equation i: 3 and the solution to the inequality 4 p 3 1-5 1+4 x-j \"-4. 1D] The graph can the left contains a hate iii-here at = 3. Determine a possible equatien fer the graph. 11) The Westfield Basketball Team bought pizza for $1200 to sell at the game. They kept 30 pizzas to feed the players after the game and sold the rest for $2250. There were 14 slices in each pizza. Their profit was $2 a slice. a) How many pizzas were in the original order? b) What was the original price of each pizza? c) What did they charge per slice