line l contains points(-2,1) and(4,1) point p has coordinates (5,7)

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02-09-2016
Mathematics

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line l contains points(-2,1) and(4,1) point p has coordinates (5,7)

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HomertheGenius HomertheGenius · Answer 1 · 2016-09-11T18:07:40+02:00

HomertheGenius HomertheGenius

11-09-2016

Line l:
1 = - 2 m + b / + ( - 1 )
1 = 4 m + b
----------------------
- 1 = 2 m - b
+
1 = 4 m + b
--------------------
0 = 6 m; m = 0
1 = 0 + b, b = 1
Line l:
y = 1
The distance from point P to line l:
7 - 1 = 6
Answer: 6 units.

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