# Math 1 Review: Question Preview (ID: 30622)

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Which expression is equivalent to t^2 + 36? (t^2 = t to the second power) |
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a) (t - 6) (t - 6) | b) (t + 6) (t - 6) | c) (t - 12) (t - 3) | d) (t - 12) (t + 3) | |

What is the minimum of y=4x^2-8x+7? (4x^2 = 4 times x to the second power) |
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a) (1, 3) | b) (3, 1) | c) (-1, -3) | d) (-3, -1) | |

The function f(t)=-5t^2 + 20t + 60 models the approximate height of an object t seconds after it is launched. How many seconds does it take the object to hit the ground? |
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a) 4 | b) 5 | c) 6 | d) 7 | |

Suppose the function f(x) = 2x + 12 represents the cost to rent x movies a month from an internet movie club. Sarah now has $10. How many more dollars does Sarah need to rent 7 movies next month? |
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a) 12 | b) 6 | c) 10 | d) 16 | |

Solve for m in the equation E = mc^2 |
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a) m = E - c^2 | b) m = Ec^2 | c) m = c^2/E | d) m = E/c^2 | |

Suppose the equation V = 20.8x^2 - 458.3x + 3500 represents the value of a car from 1964 to 2002. What year did the care have the least value? (x = 0 in 1964) |
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a) 1965 | b) 1970 | c) 1975 | d) 1980 | |

Cell phone Company Y charges a $10 start-up fee plus $0.10 per minute, x. Cell phone Company Z charges $0.20 per minute, x, with no start up fee. Which function represents the difference in the cost between Company Y and Company Z? |
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a) f(x) = -0.10x - 10 | b) f(x) = -0.10x + 10 | c) f(x) = 10x - 0.10 | d) f(x) = 10x + 0.10 | |

Solve the system. y=5x + 5 and y=15x - 1 |
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a) (8, 3/5) | b) (-3/5, 8) | c) (3/5, 8) | d) (-3/5, -8) | |

Find the solution to the system. y=3/2x and 6x - 4y=1 |
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a) No Solution | b) Infinite Solutions | c) (3/2, 1) | d) (0, 0) | |

Suppose a video store charges nonmember $4 to rent each video. A store membership costs $21 and members pay only $2.50 to rent each video. For what number of videos is the cost the same? |
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a) 11 | b) 12 | c) 13 | d) 14 | |

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