1) Find the zero of the function defined as: a) x=3 b) x=-6 c) x=2 d) x=-2 2) Which of the following functions has a maximum value? a) b) c) d) 3) Were does the function have its minimum, and what is the minimum value? a) (-3; 2) b) (3; 2) c) (-3; -2) d) (3; -2) 4) Choose the correct graph of the function . a) b) c) d) 5) Find the range of the function f, if the domain is the interval [ –1 ; 4 ]. a) [ 0 ; 16 ] b) [1 ; 16 ] c) [ -1 ; 16 ] d) [ 0 ; 1] 6) The diagram shows a part of the graph of the function f defined on the set of real numbers. Find the values of h and v. a) h=-2; v=-3 b) h=2; v=3 c) h=2; v=-3 d) h=-2; v=3 7) What could be the domain of function f? a) b) c) d) 8) What is the slope of this linear function? a) 2 b) -2 c) -6 d) 6 9) Choose the correct rule of assignment of the graphed function in this diagram. a) b) c) d) 10) Which of the following statements about this function is FALSE? a) The function is a linear function. b) The function is monotone decreasing. c) The function has no maximum value. d) The range of the function is the set of real numbers. 11) Which of the following statements about this function is TRUE? a) The function has a minimum value. b) The graph of the function is a hyperbole. c) It's an absolute value function. d) The function has one zero. 12) Which of the the following functions has the minimum value of 2? a) b) c) d)

Functions for 9 graders

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