1.   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. 3x + 4y = -16
    C.
    D. 8y = - 6x
    Hint

  2.   Which pair of lines graphed below are parallel?
   
    A. k and n B. l and n
    C. k and m D. l and m
    Hint

  3.   If a rocket is fired from the ground with an initial velocity of 75 meters per second, then the height of the rocket after t seconds is h = 75t - 4.9t2. Find the height of the rocket after 3 seconds.
    A. 252.5 meters B. 180.9 meters
    C. 221.6 meters D. 130.4 meters
    Hint

  4.   The greatest power in a quadratic function is ______.
    A. 1 B. 2
    C. 4 D. 3
    Hint

  5.   What is the equation of the graph shown?
   
    A. f(x) = -2x2 + 2x - 1
    B. f(x) = -2x2 + 2x + 1
    C. f(x) = 2x2 - 2x + 1
    D. f(x) = 2x2 + 2x + 1
    Hint

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

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

  8.   Find the situation that involves a decreasing linear relationship and has direct variation.
    A. A submarine that begins at the bottom of the ocean and is raised to the surface of the water at 15 meters per second.
    B. The temperature that begins at 0°F at 6:00 a.m. rises 3°F every hour for 6 hours.
    C. An airplane that begins at 20,000 feet and descends for a landing on the ground at the airport.
    D. A bucket that begins at ground level and is lowered into a well at a rate of 1 foot per second.
    Hint

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

  10.   What is the equation of a line that has a slope of 3 and passes through (–4, –3)?
    A. y = 3x + 3 B. y = 3x – 3
    C. y = 3x – 9 D. y = 3x + 9
    Hint

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

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

  13.   What is the lowest point on the graph of y = x2 + 2?
    A. (0, –2) B. (0, 2)
    C. (0, 0) D. (2, 0)
    Hint

  14.   How many diagonals does a 25-sided polygon have?
    A. 300 B. 275
    C. 25 D. 550
    Hint

  15.   Describe how the graph of y = (x + 1)2 differs from the graph of y = x2.
    A. the graph of y = (x+1)2 moved 1 unit to the right
    B. the graph of y = (x + 1)2 moved 1 unit to the left
    C. the graph of y = (x + 1)2 moved up 1 unit
    D. the graph of y = (x + 1) 2 moved down 1 unit
    Hint

  16.   Find the equation of the graph below.
   
    A. y = x2 + 3 B. y = (x + 3)2
    C. y = x2 – 3 D. y = (x - 3)2
    Hint

  17.   Find the cubic equation.
    A. y = 3x B. y = x2 + 5
    C. y = x(x3 + 1) D. y = 5x3 + 2x
    Hint

  18.   What is the new equation if the graph y = 2x3 – 6x2 is moved down 1 unit?
    A. y = 2x3 – 5x2
    B. y = 2x3 – 6x2 + 1
    C. y = x3 – 6x2
    D. y = 2x3 – 6x2 – 1
    Hint

  19.   What are the second differences in the y-values?
   
    A. 1 B. 0
    C. –1 D. 2
    Hint

  20.   Which differences are constant in a cubic equation?
    A. fourth B. second
    C. third D. first
    Hint



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