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The slope of a line is -2 and the line contains the points (7 ,4) and (x, 12). What is the value of x?
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The slope of a line is -2 and the line contains the points (7 ,4) and (x, 12). What is the value of x?

User Nando Vieira
by
5.2k points

2 Answers

3 votes

Answer:

x=3 this is my answer. ......

User RectangleEquals
by
5.4k points
2 votes

Answer:

  • x = 3

Explanation:

Use slope formula and compare with the actual slope m = -2:

  • m = (12 - 4)/(x - 7)
  • 8/(x - 7) = -2
  • x - 7 = -4
  • x = 7 - 4
  • x = 3
User LVB
by
4.5k points
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