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

  2.   What is the slope of in parallelogram ABCD?
   
    A. B.
    C. D.
    Hint

  3.   A line of best-fit should not be drawn for which of the following graphs.
    A. B.
    C. D.
    Hint

  4.   Which equation is the slope-intercept form of the equation of the line that passes through (1, 2) and is parallel to 4x - 2y = 6?
    A. y = 2x B. y = 4x + 3
    C. D. y = -2x + 1
    Hint

  5.   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.
    B.
    C. 8y = - 6x
    D. 3x + 4y = -16
    Hint

  6.   The table shows the possible lengths and widths of a rectangle that has an area of 72 square centimeters. Make a scatter plot of the data.
   
    A. B.
    C. D.
    Hint

  7.   What is the slope of the line through the points A(-3, 4) and B(2, -1)?
    A. -1 B. 1
    C. D. -3
    Hint

  8.   Determine the slope of the line containing the points P(-7, -8) and
Q(3, 0).
    A. -2 B.
    C. D. 2
    Hint

  9.   The graph of a linear function is _______.
    A. a horizontal line only B. a curved line
    C. None of these is correct D. a straight line
    Hint

  10.   Which characteristic describes a graph that is linear and has direct variation.
    A. The equation has the form y = mx + b.
    B. The graph does not pass through (0, 0).
    C. Variables x and y are not proportional.
    D. The equation has the form y = mx.
    Hint

  11.   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

  12.   Which characteristic describes a graph that is linear and has direct variation.
    A. The equation has the form y = mx.
    B. The graph does not pass through (0, 0).
    C. Variables x and y are not proportional.
    D. The equation has the form y = mx + b.
    Hint

  13.   Find the equation that contains a decreasing linear relationship.
    A. y = 4x – 3 B. y = 12+ 2x
    C. y = 5 – 6x D. y = 10 + x
    Hint

  14.   Find the situation that is linear but does not have direct variation.
    A. At the beginning of the summer, Dina had $200 in the bank. She withdrew $30 to buy a new pair of shorts.
    B. At the beginning of the summer, Dina had $200 in the bank. She started a job and deposited $10 per week.
    C. At the beginning of the summer, Dina had $0 in the bank. She earned $50 mowing lawns the previous week and deposited the money in the bank.
    D. At the beginning of the summer, Dina had $0 in the bank. She started a job and deposited $10 per week.
    Hint

  15.   Find the equation that is nonlinear.
    A. y = –3x – 1 B. y = 8 – x
    C. y = 4y2 D. y = 14 + 6x
    Hint

  16.   Find the table that represents a graph with direct variation.
    A.
    B.
    C.
    D.
    Hint

  17.   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

  18.   Which line is parallel to the line listed below?
    A.
    B. y = 2x - 5
    C.
    D.
    Hint

  19.   Which three points are collinear?
    A. (3, –1), (2, 5), (2, –3)
    B. (–4, 4), (0, –4), (–1, –2)
    C. (1, 2), (–3, –2), (–2, –4)
    D. (–5, 2), (1, 1), (4, 4)
    Hint

  20.   Write the equation in slope-intercept form.
–6x = –10 – 2y
    A. y = 3x – 5
    B. y = 3x + 8
    C. y + 8 = 3(x + 1)
    D. –6x + 2y + 10 = 0
    Hint



Glencoe
The McGraw-Hill Companies