1.   What is the final answer to this Think of a Number trick?
Think of a number.
Multiply by 4.
Subtract 8.
Divide by 2.
Add 4.
    A. the answer is 2 times the number you started with
    B. the answer is 2 less than the number you started with
    C. the answer is –2 times the number you started with
    D. the answer is 2 more than the number you started with
    Hint

  2.   Simplify the equation.y = –2(x – 7) – (9 + 5x)
    A. y = 7x – 5 B. y = 3x – 16
    C. y = –16x + 3 D. y = –7x + 5
    Hint

  3.   Which equation is not linear?
    A.
    B. 5x – 2y = 4.1
    C. –3y + x – 16 + 2.9x= 0
    D. y = –2(–8 – x) – 5x (x – 1)
    Hint

  4.   Which equation is not the same as the other three?
    A. B.
    C. 6 + 2y = x D.
    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. The graphs have the same slope and y-intercept.
    B. The graphs have the same y-intercept, but different slopes.
    C. The graphs have the same slope, but different y-intercepts.
    D. None of the graphs have the same slope nor the same y-intercept.
    Hint



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