1.   Simplify (3a4b5c)4.
    A. 12a8b9c5 B. 7a16b20c4
    C. 81a16b20c4 D. 3a16b20c4
    Hint

  2.   Find a number that when squared equals 484.
    A. -22 only B. 22 only
    C. 22 or -22 D. None of these is correct
    Hint

  3.   The graph of y = -4x2 - 1 is _____.
    A. None of these is correct. B. a parabola
    C. a straight line D. a circle
    Hint

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

  5.   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. The equation has the form y = mx + b.
    D. Variables x and y are not proportional.
    Hint

  6.   Find the equation that has direct variation.
    A. y = 4x B. y = –3x – 1
    C. y = 0.8x + 9 D. y = 5x + 1.3
    Hint

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

  8.   Find the graph of y = x2 + 1.
    A. B.
    C. D.
    Hint

  9.   Which equation is in the same family as y = x2?
    A. y = x2 – 3 B. y = 2x2 – 3
    C. y = x3 – 3 D. y = 2x – 3
    Hint

  10.   Find a quadratic equation for the table.
   
    A. y = 5x2 – 1 B. y = x2 – 5
    C. y = 5x2 + 1 D. y = 5x2 – 2
    Hint

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

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

  13.   Consider the equation . What happens to the value of y when x is divided by 4?
    A. y is added to 4
    B. y is divided by 4
    C. y is subtracted from 4
    D. y is multiplied by 4
    Hint

  14.   Find which equation does not represent a reciprocal relationship.
    A. B. ab = 3
    C. D. –6 = ef
    Hint

  15.   How does a affect graphs of equations in the form of ?
    A. a affects the width of the graph
    B. a affects the length of the graph
    C. negative values of a move the graph to the left, positive values move it to the right
    D. positive values of a move the graph to the left, negative values move it to the right
    Hint

  16.   Consider the following conjecture. If an even number is written 2k, where k is a whole number, then 2k + 1 must be an odd number. What can be your next course of action in dealing with this conjecture?
    A. test every possible case to prove the conjecture
    B. find a counterexample to disprove the conjecture
    C. all answers are correct
    D. develop an argument to prove the conjecture
    Hint

  17.   Use the following table to find the population of bacteria in hour n.
   
    A. 30,0006n
    B. 6 × 30,000 n
    C. 30,000 × 66
    D. 180,000n
    Hint

  18.   Identify the growth factor in the equation p = 682,363 × 1.08n where p is the population and n is the number of years after 2001.
    A. n B. p
    C. 682,363 D. 1.08
    Hint

  19.   Which equation represents exponential growth?
    A. y = 250 × 4x B. y = 250 × 0.4c
    C. y = 250 · x D. y = 250 × 0.25x
    Hint

  20.   Find the table that does not represent an exponential equation.
    A.
    B.
    C.
    D.
    Hint



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