1.   Using n, find the expression for this Think of a Number trick.
Think of a number.
Multiply by 2.
Add 4.
Divide by 2.
Add 6.
Subtract the number you started with.
    A.
    B.
    C.
    D.
    Hint

  2.   What is the final answer to this Think of a Number trick?
Think of a number.
Subtract 6.
Multiply by –3.
Subtract 18.
    A. the answer is –1.5 times the number you started with
    B. the answer is 3 times the number you started with
    C. the answer is 1.5 times the number you started with
    D. the answer is –3 times the number you started with
    Hint

  3.   Find the linear equation.
    A. y = 7x (x– 1) + 4(9.6 –x)
    B. y = 5.2(x – 6) – 2(4 – 3x)
    C. y = x + x2 – 7x + 4.9
    D. y = 10(x – 8) + 3x2
    Hint

  4.   Which equation is not the same as the other three?
    A. B.
    C. D. 6 + 2y = x
    Hint

  5.   Name a similarity and a difference among the three graphs below.
7x + y + 8 = 0
–7x + y + 8 = 0
–3xy – 8 = 0
    A. None of the graphs have the same slope nor the same y-intercept.
    B. The graphs have the same slope, but different y-intercepts.
    C. The graphs have the same y-intercept, but different slopes.
    D. The graphs have the same slope and y-intercept.
    Hint



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