1.   Determine the slope of the line graphed below.
   
    A. B.
    C. 0 D.
    Hint

  2.   Three out of the four equations listed below are equations of lines that are parallel to each other. Which equation does not have a graph that is a line parallel to the other three?
    A. 3x + 4y = -16
    B. 8y = - 6x
    C.
    D.
    Hint

  3.   Use the scatter plot to predict the mileage of an engine with 250 horsepower.
   
    A. 25 B. 12
    C. 20 D. 10
    Hint

  4.   Find the equation that has direct variation.
    A. y = 4x B. y = –3x – 1
    C. y = 5x + 1.3 D. y = 0.8x + 9
    Hint

  5.   Find the graph that is nonlinear.
    A. B.
    C. D.
    Hint

  6.   Michael just got a job mowing his elderly neighbor's lawn paying him $10 each week. Draw a graph showing the amount he receives is increasing very rapidly. Suppose you graph the time in weeks on the horizontal axis and the amount Michael receives on the vertical axis.
    A. B.
    C. D.
    Hint



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