7.02 systems of equations

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QUESTION 1

  1. Is the following system consistent or inconsistent?

    8x + y + 4 = 0

    y = -8x – 4 

    consistent

    inconsistent

2 points  

QUESTION 2

  1. Is the following system consistent or inconsistent?

    7x + 6 = -2y

    -14x -4y + 2 = 0 

    consistent

    inconsistent

2 points  

QUESTION 3

  1. Is the following system consistent or inconsistent?

    -2x – 2y = 6

    10x + 10y = -30 

    consistent

    inconsistent

2 points  

QUESTION 4

  1. Is the following system consistent or inconsistent?

    2y = x – 7

    -2x – 6y = -14 

    consistent

    inconsistent

2 points  

QUESTION 5

  1. Is the following system consistent or inconsistent?

    y = 2x + 5

    -2x + y = -2 

    consistent

    inconsistent

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