# FUNCTIONS: Question Preview (ID: 10037)

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1. What is the equation of the axis of symmetry for the parabola y=-2x^2? Assume that the turning point (maximum point) is (1,6). |
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a) y=2 | b) y=2 | c) y=1 | d) y=1 | |

^Will the graph of the parabola y = -2x2 + 4x - 4 open upward or downward? |
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a) upward | b) | c) | d) downward | |

Which of the following statements is absolutely NOT true for the parabola y=(x+1)^2 |
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a) The x-intercept is (-1,0) | b) The axis of symmetry is x = -1. | c) The axis of symmetry is y = -1. | d) The axis of symmetry is x = -1. | |

What is the equation of the axis of symmetry of the graph y = 3x^2 + 12x - 2 ? |
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a) x=-2 | b) y=2 | c) y=-2 | d) x=2 | |

Which is the equation for the parabola at points (3,0) and (-1,0)? |
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a) y = -x^2 - 4 | b) y = x^2- 2x - 3 | c) y = -x^2 + 2x + 4 | d) y = -x^2 -2x - 4 | |

What are the roots of the parabola y = x^2- 2x - 3 ? |
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a) 3 and 1 | b) -4 and 0 | c) 1 and 0 | d) 3 and -1 | |

What is the turning point, or vertex, of the parabola whose equation is y = 3x^2 + 6x - 1? |
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a) (3,44) | b) (1,8) | c) (-1,-4) | d) (-3,8) | |

For which quadratic equation (parabola) is the axis of symmetry x = 3? |
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a) y = -x2 + 3x + 5 | b) y = x2 + x + 3 | c) y = -x2 + 6x + 2 | d) y = x2 + 6x + 3 | |

A baseball player throws a ball from the outfield toward home plate. The ball\'s height above the ground is modeled by the equation y = -16x2 + 48x + 6, where y represents height, |
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a) 42 feet | b) 48 feet | c) 54 feet | d) 76 feet | |

The height, y, in feet, a ball will reach when thrown in the air is given by the equation y = -16x2 + 30x + 6. Find to the nearest tenth, the maximum height, in feet, the ball wi |
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a) 39.3 feet | b) 20.1 feet | c) 20.0 feet | d) 33.2 feet | |

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