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Linear Functions Review

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    Math
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  • What function could have produced the values in the table?
    B
  •  15
  • A fish pond has 3 gallons of water in it. Water is added at a rate of 2 gallons per minute. Select the equation that models the relationship between water (w), in gallons, in the pond after t minutes.
    C
  •  15
  • Each relation shown defines y as a function of x. Which function has the greatest rate of change?
    A
  •  20
  • Saul has filled in the following table for the linear function y = 7x + 4. What mistake did Saul make with his coordinates in the table?
    the point (0,2) should be (0,4)
  •  10
  • Select the ordered pair that satisfy the function y = 2x +7
    C
  •  15
  • What is an equation in the form of y = mx + b that represents the function defined by this table of values?
    y = 2x - 1
  •  25
  • What is an equation in the form of y = mx + b that represents the function described by the graph?
    y = -2x + 2
  •  20
  • An airplane travels at an altitude of 16,000 feet. As it descends, it drops 500 feet per minute in elevation. What is an equation that represents the altitude of the airplane?
    y = -500x + 16,000
  •  20
  • What is the rate of change of this function?
    -15/2
  •  25
  • What is the rate of change of the water level, in feet per hour?
    -10/2 or -5ft/hr
  •  15
  • What is the initial charge for the electrician's services, before he performs any repairs?
    $100
  •  10
  • What is the definition of rate of change?
    The rate at which something changes. The growth. Slope.
  •  5
  • A swimming pool containing 1600 gallons of water is emptied at a constant rate of 300 gallons every 2 hours. TRUE or FALSE: The initial amount of water in the pool is 1600.
    True
  •  10
  • A swimming pool containing 1600 gallons of water in emptied at a constant rate of 300 gallons every 2 hours.    TRUE or FALSE: The amount of water in the pool decreased by 150 gallons every 1 hour.
    True
  •  10