1.   What is the slope of a horizontal line?
    A. 1 B. -1
    C. 0 D. undefined
    Hint

  2.   State the slope and the coordinates of a point on the graph of the equation
y – 6 = –3(x + 1).
    A. m = –3; (6, –1) B. m = –3; (–1, 6)
    C. m = ; (-1, 6) D. m = –3; (1, –6)
    Hint

  3.   Write an equation in slope–intercept form of the line with slope and y-intercept 3.
    A. B.
    C. D.
    Hint

  4.   Children in grades one through six are measured for their height. A scatter plot is drawn where the ordered pairs are (grade, height). Which statement will be true?
    A. The graph will show a positive relationship between the variables. B. The graph will show no relationship between the variables.
    C. The graph will show a negative relationship between the variables. D. If a line was drawn approximately through the points, a vertical line would result.
    Hint

  5.   Determine the slope and y-intercept of the graph of the equation
    A. m = -7;
    B. ; b = -7
    C. m = 7;
    D. ; b = 7
    Hint

  6.   Determine the slope and y-intercept of the graph of –4 + 2y = 8x.
    A.
    B. m = 4; b = 2
    C.
    D. m = 2; b = 4
    Hint

  7.   Graphs that have at least one characteristic in common that makes them different from other groups of graphs are called _________.
    A. a family of graphs B. reciprocal graphs
    C. positive graphs D. identity graphs
    Hint

  8.   The graphs of the equations y = –5x + 1 and are a family of graphs because ________.
    A. the y-intercepts are the same B. the slopes are integers
    C. the slopes are reciprocals D. both equations are solved for y
    Hint

  9.   Joe and Tomasita drove separate cars on their summer trip to Florida. Below is the graph of the gallons of gasoline consumed compared to the miles driven along the same roads. What does the graph indicate?
   
    A. Tomasita's car gets 60 miles per gallon, and Joe's car gets 40 miles per gallon.
    B. Joe's car gets 60 miles per gallon, and Tomasita's car gets 40 miles per gallon.
    C. Tomasita's car gets 30 miles per gallon, and Joe's car gets 20 miles per gallon.
    D. Joe's car gets 30 miles per gallon, and Tomasita's car gets 20 miles per gallon.
    Hint

  10.   The line in the graph represents Pete's increasing math grade. Find the equation of the line in point-slope form. Use (4, 64) for (x1, y1).
   
    A. y – 4 = 2(x – 64)
    B. y + 64 = 2(xv + 4)
    C. y – 64 = 2(x – 4)
    D. y + 4 = 2(x + 64)
    Hint

  11.   Write an equation in slope–intercept form of the line with slope -2 and
y-intercept 0.
    A. y = - B. y = -x
    C. y = -2x D. y = -2
    Hint

  12.   Determine whether the scatter plot shows a positive. relationship, negative relationship, or no relationship.
   
    A. no relationship B. cannot be determined
    C. positive relationship D. negative relationship
    Hint

  13.   Which two equations have graphs that are parallel?

    A. y = x + 2
-3 – y = (x + 2)

    B. y = 3x – 1
-3 – y = (x + 2)

    C. y = 3x – 1
4y = 12x + 13

    D. y = x + 2
4y = 12x + 13

    Hint

  14.   Which equation is parallel to the graph of y = 2x + and passes through the point (4, 7)?
    A. y = -x + B. y = 2x + 3
    C. y = x + D. y = 2x – 1
    Hint



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