1.   State the domain and the range of the relation {(1, 2), (-4, 2), and
(3, 5)}. Then state whether the relation is a function.
    A. The domain is {-4, 1, 3}, the range is {2, 5}, and the relation is not a function. B. The domain is {2, 5}, the range is {-4, 1, 3}, and the relation is a function.
    C. The domain is {-4, 1, 3},
the range is {2, 5}, and the relation is a function.
D. The domain is {2, 5}, the range is {-4, 1, 3}, and the relation is not a function.
    Hint

  2.   Given f(x) = x2 + 1 and g(x) = 2x - 1, find (f - g)(x).
    A. x2 - 2x + 1 B. x2 - 2x - 1
    C. x2 - 2x + 2 D. x2 + 2x
    Hint

  3.   The revenue for the sale of x objects is r(x) = 8x. The cost of manufacturing x objects is c(x) = 0.5x + 300. Write the profit function.
    A. 8.5x + 300 B. 7.5x + 300
    C. 8.5x - 300 D. 7.5x - 300
    Hint

  4.   Find the x- and y-intercepts for 3x + 4y - 12 = 0.
    A. (0, 3) and (4, 0) B. (-4, 0) and (0, -3)
    C. (-3, 0) and (0, -4) D. (0, 4) and (3, 0)
    Hint

  5.   Write an equation in slope-intercept form for the line with a slope
of and a y-intercept of -3.
    A. y = x - 3 B. y = x - 3
    C. y = x + 3 D. y = x + 3
    Hint

  6.   Determine whether the graphs of the pair of equations
2x + 3y = 6 and 4x + 6y = 5
are parallel, coinciding, or neither.
    A. parallel B. all are correct
    C. coinciding D. neither
    Hint

  7.   Which is the best prediction equation for the data?
   
    A. y = 10x - 19,950 B. y = 25x - 19,950
    C. y = 5x - 19,950 D. y = 20x - 19,950
    Hint

  8.   An automobile manufacturer produces two kinds of cars--the Bobcat x and the Lion y. The company must always produce twice as many Bobcats as Lions and at least 300 cars but no more than 1200 cars per day. Model this situation algebraically.
    A. 300 x + 2y 1200
    B. 300 2x + y 1200
    C. 300 x + 2y 1200 and x = 2y
    D. 300 x + y 1200 and x = 2y
    Hint

  9.   State the domain and range of the relation. Then state whether the relation is a function.{(2,-1), (-2,4), (2,5), (3,6)}
    A. Domain {-1,4,5,6}Range {-2,2,3}The relation is a function.
    B. Domain {-2,2,3} Range {-1,4,5,6} The relation is a function.
    C. Domain {-2,2,3} Range {-1,4,5,6}The relation is not a function.
    D. Domain {-1,4,5,6}Range {-2,2,3} The relation is not a function.
    Hint

  10.   Find the x- and y-intercepts of the equation:
    A. x-intercept 5; y-intercept -2 B. x-intercept –2; y intercept 5
    C. x-intercept –5; y-intercept 2 D. x-intercept 2; y-intercept 5
    Hint

  11.   Write an equation of the line that passes through the points (-2, 4) and (6, -4).
    A. B.
    C. D.
    Hint

  12.   Determine whether 3x - 5y + 1 = 0 and 6x - 10y + 2 = 0 are parallel, coinciding, or neither.
    A. parallel B. coinciding
    C. perpendicular D. all are correct
    Hint

  13.   Ilene analyzed her test scores and determined the equation of the best-fit line was y = 4.25x + 72. Predict her score for the 5th test.
    A. 98.5 B. 93.25
    C. 88.75 D. 72.5
    Hint

  14.   Graph the equation
    A. B.
    C. D.
    Hint

  15.   What is the value of y when x = 2?
   
    A. 1 B. 0
    C. 2 D. undefined
    Hint

  16.   Which is the graph of the inequality 2x + y + 3 >0?
    A. B.
    C. D.
    Hint



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