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Research and development expenditures are given in the graph. Use the given Revered pairs from the graph to find the average rate of change in these R&D Expenditures expenditures per year. (millions of dollars ) as of dollars) The rate of change is $ |million per year. (Simplify your answer.) Find an equation of the line passing through the pair of points. Write the equation in the form Ax + By = C. (0.0). - 7.5 (1991,150) The equation of the line in the form Ax + By =C is Simplify your answer. Use integers or fractions for any numbers in the equation.) Find an equation of the line described. Write the equation in slope-intercept form when possible. Use the graph of the function f shown to the right to find f( - 3), f( - 2), and f( - 1). 1 ( - 3 ) =[ Through (9,8) and (0,0) 1( - 2 ) =] The equation of the line is y =. 1 1 - 1 ) = 0 10 -8 6 2 2 2 4 8 8 10 Simplify your answer. Use integers or fractions for any numbers in the expression.) Find the domain and the range of the function graphed to the right. The pitch of a roof is its slope. Find the pitch of the roof shown. 2 Choose the domain of the function graphed. The pitch is (Simplify your answer.) A. all real numbers OB. X> - 1 O C. all real numbers except 1 OD. XS - 3 Choose the range of the function graphed. OA ys - 3 B. all real numbers C, all real numbers except - 3 OD. y> - 3