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9.1 Tell whether each function is a quadratic. Type Y for yes and N for no 3x2 -2= y +10 y - 4x = x2 + 2 y = 3x - 2 7x - 2 = y - x2 x2 = y + 4 y = 2x - 3 9.1 Tell whether the coordinates can represent a quadratic function. x y no, not a quadratic yes, its a quadratic -6 -5 -4 -6 -2 -4 0 0 9.1 Tell whether the coordinates can represent a quadratic function. x y no, not a quadratic yes, its a quadratic 0 -5 1 -5 2 -3 3 1 9.1 Tell whether the coordinates can represent a quadratic function. x y no, not a quadratic yes, its a quadratic -2 4 0 0 2 4 4 16 9.1 Tell whether the coordinates can represent a quadratic function. x y no, not a quadratic yes, its a quadratic -3 -4.5 -2 -2 -1 -.5 0 0 9.1 Tell whether the coordinates can represent a quadratic function. x y no, not a quadratic yes, its a quadratic -3 10 -2 4 -1 2 0 0 9.1 y = -3x2 Tell if the quadratic function opens up or opens down. Type U for up and D for down y = ½x2 - 4 y = x - x2 + 4 y = -⅔x2 + 10 y = -4 + x2 2 -2 4 -4 2 -2 4 -4 6 -6 9.1 Give the coordinates ofthe vertex. give answer with parentheses and a comma ex: (0,0) vertex = 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 9.1 Give the coordinates ofthe vertex. give answer with parentheses and a comma ex: (0,0) vertex = 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 9.1 Give the coordinates ofthe vertex. give answer with parentheses and a comma ex: (0,0) vertex = 2 -2 4 -4 6 -6 2 -2 4 -4 6 -6 8 -8 10 -10 9.1 Give the coordinates ofthe vertex. give answer with parentheses and a comma ex: (0,0) vertex = 2 -2 4 -4 2 -2 4 -4 6 -6 9.1 Give the coordinates ofthe vertex. give answer with parentheses and a comma ex: (0,0) vertex = Find the domain and range of the quadratic 9.1 D: all reals > 0 R: all reals ≥ -1 D: all reals R: all reals D: all reals R: all reals ≥ -1 D: all reals R: all reals ≤ -1 Find the domain and range of the quadratic 9.1 D: all reals R: all reals ≤ 3 D: all reals R: all reals D: all reals R: all reals ≥ 3 D: all reals ≥ 3 R: all reals Find the domain and range of the quadratic 9.1 D: all reals > 0 R: all reals ≥ 5 D: all reals R: all reals D: all reals R: all reals ≥ -5 D: all reals R: all reals ≤ 5 |