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The equation of a line is y – 7 = 3(x – 12). Which equation represents the same line?

A) 3x + y = 8
B) 3x + 4y = 12
C) 3x - y = 5
D) 3x – 4y = 8

User Mohammad C
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1 Answer

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Final answer:

After simplifying the given equation y - 7 = 3(x - 12) to y = 3x - 29, it becomes apparent that none of the provided options A) 3x + y = 8, B) 3x + 4y = 12, C) 3x - y = 5, or D) 3x – 4y = 8 represent the same line as they each lead to different forms upon simplification.

Step-by-step explanation:

The equation of a line given as y – 7 = 3(x – 12) can be simplified to find an equivalent equation. We will distribute the 3 and move terms around to match one of the given options.

  • y - 7 = 3x - 36
  • y = 3x - 36 + 7
  • y = 3x - 29

To find the equation that represents this same line, we look for the one that can be similarly arranged.

  • A) 3x + y = 8 (3x - 8 = y, not in the same form)

B) 3x + 4y = 12 (not in the same form)

C) 3x - y = 5 (3x - 5 = y, not in the same form)

  • D) 3x – 4y = 8 (3x - 8 = 4y -> y = 3x/4 - 2, not in the same form)
  • Upon reviewing these options, we can conclude that none of these equations exactly represent the original equation
  • y = 3x - 29
  • .
User Atiqur
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