1.   Determine whether a scatter plot of a set of data involving height and size of feet would show a positive, negative, or no relationship.
    A. positive B. not enough information given
    C. no relationship D. negative
    Hint

  2.   Determine whether a scatter plot of data comparing a homeowner's height and the height of the trees in his or her yard would show a positive, negative, or no relationship.
    A. no relationship B. not enough information given
    C. negative D. positive
    Hint

  3.   Many children grow at a predictable rate. The function f(n) = 2.65n + 28.9 can be used to estimate the height in inches for a boy who is n years old. The function is accurate until about age 13. Complete the function table.
   
    A.
    B.
    C.
    D.
    Hint

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

  5.   Graph J (2, 5).
    A. B.
    C. D.
    Hint

  6.   Which equation passes through the points (-1, -1), (0, 1), and (1, 3)?
    A. y = x+1 B. y = 2x+1
    C. y = -2x+1 D. y =+1
    Hint

  7.   A hotdog vendor's profit P for each hotdog sold h is modeled by the function P = 1.75h. What would be the hotdog vendor's profit if he sold 125 hotdogs?
    A. $126.75 B. $142.50
    C. $225.00 D. $218.75
    Hint

  8.   Find the slope of the line that passes through A(-3, 2) and B(1, 3).
    A. 4 B. -4
    C. - D.
    Hint

  9.   Find the slope of the line that passes through M(-6, 2) and N(-4, -2).
    A. - B.
    C. -2 D. 2
    Hint

  10.   A T-shirt company charges a design fee of $25 and then sells the shirts for $10 each. The total cost y can be represented by the equation y = 10x + 25, where x represents the number of T-shirts. The graph of the equation is shown. Describe what the slope and y-intercept represent.
   
    A. The slope represents the total cost of the T-shirts. The y-intercept represents the one-time design charge.
    B. The slope represents the number of T-shirts. The y-intercept represents the cost per T-shirt.
    C. The slope represents the one-time design charge. The y-intercept represents the cost per T-shirt.
    D. The slope represents the cost per T-shirt. The y-intercept represents the one-time design charge.
    Hint

  11.   A long-distance phone company charges $5 per month and $0.10 per minute. The total bill y for the month can be represented by the equation y = 0.10x + 5. The graph of the equation is shown. Describe what the slope and y-intercept represent.
   
    A. The slope represents the monthly charge. The y-intercept represents the cost per minute.
    B. The slope represents the total bill. The y-intercept represents the cost per minute.
    C. The slope resents the number of minutes used. The y-intercept represents the monthly charge.
    D. The slope represents the cost per minute. The y-intercept represents the monthly charge.
    Hint

  12.   Evaluate 3x - 4 if x = 2.
    A. 5 B. -1
    C. 2 D. 10
    Hint

  13.   Shanda knits 5 scarves in 2 hours. Assuming the number of scarves she knits varies directly with time, how many scarves will she knit in 10 hours?
    A. 25 B. 2
    C. 5 D. 10
    Hint

  14.   Libby’s two hamsters eat 1 cup of food per week. Assuming the amount of food eaten varies directly with the number of hamsters, how much food would 7 hamsters eat?
    A. 1 cup B. 3 cups
    C. 7 cups D. 3.5 cups
    Hint

  15.   A zoo has a total of 8 lions and tigers. The number of tigers is one less than twice the number of lions. Write a system of equations that represents the number of lions and tigers.
    A. L + T = 8
T = 2L − 1
B. L + T = 8
T = 2L + 1
    C. LT = 8
T = 2L − 1
D. L + T = 2
T = L − 8
    Hint

  16.   Peter makes $6 an hour raking leaves and $8 an hour babysitting. He wants to work a total of at least 15 hours this week and make at least $100. Write a system of inequalities that represents this situation.
    A. b + r ≤ 15
6b + 8r ≤ 100
B. r + b ≥ 15
6r + 8b ≥ 100
    C. r + b ≤ 15
6r + 8b ≤ 100
D. b + r ≥ 15
6b + 8r ≤ 100
    Hint

  17.   The Venn Diagram shows the names of students who played soccer and softball. Which students played both?
   
    A. Sue and Bobbie B. Jane and Ling
    C. Liza and Lexie D. Ling and Lisa
    Hint

  18.   The table shows the number of visitors to a state park for seven consecutive years. If the trend continues, which is the best prediction for the number of visitors in 2015?
   
    A. 78,500 B. 72,200
    C. 75,600 D. 79,300
    Hint