Question: Problems ? 12, Evaluate each function at the specified value of the independent variable and simplify. 9. f ( x ) = 2x2 + 3x

Problems ? 12, Evaluate each function at the specified value of the independent variable and simplify. 9. f ( x ) = 2x2 + 3x -5 10. f ( x ) = 1x1 - 3 A. f (- 1) A. f(-x ) B. -f(x) B. f (x - 1) C. f (2x ) C. f(3x ) 11. f (x) = Vx2 -x 12. f (x) = x2 - 1 A. f (-1) A. -f (x ) B. f(-x) B. f (x + 1 ) C. - f (x) C. f (x + h ) Problems 13 - 16, answer each question. 13. If f (x) = 2x3 + Ax2 + 4x -3 and 14. If f (x ) = 2x - B 3x + 4 and f (-2) = >, what is f(2) = 13, what is the value of A? the value of B? 16. Express the gross salary S of a person 15. Write the area A of a square as a function earning $18 per hour as a function of the of its perimeter P. number h of hours worked

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