awnsers

Unit Polynomial Rational 1 Functions Test Name Form A Date Period 1. The function f is a rational function. Use interval notation to state the domain. f ( x) = _ x +1 x - - 1 A. (1, 00 ) B. [1, 00) C. [0, 00) D. (-00, 1) U (1, 00 ) 2. The function g is given by g(x) = 3x4 - 5x2 - 4. Which of the following describes the end behavior of g? A. lim g(x) = -co lim g(x) = -co x - 0o X - - 00 .lim g(x) = -co lim g(x) = 0o alwoll X - 00 C. lim g(x) = co lim g(x) = 0. x - - 00 ' D. lim g(x) = co lim g(x) = -co X - 00 3. The table shows values for a function h at selected values of x. Which of the following explanation statements best fits these data? X 2 3 4 h(x) 45 68 86 99 107 A. The function h is best modeled by a linear function since the average rates of change over consecutive equal-length input values vary linearly. B. The function h is best modeled by a linear function since the average rates of change over consecutive equal-length input values are constant. C. The function h is best modeled by a quadratic function since the average rates of change over consecutive equal-length input values vary linearly. D. The function h is best modeled by a quadratic function since the average rates of change over consecutive equal-length input values are constant