SJ
Last Activity: 4 Years ago
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The given equation of the line is y = mx + c.
From the given condition, the perpendicular from the origin meets the given line at (-1, 2).
Hence, the line joining the points (0, 0) and (-1, 2) is perpendicular to the given line.
The slope of the line joining (0, 0) and (-1, 2) is
= 2/-1 = -2
Therefore,
m (– 2) = -1 (Since the two lines are perpendicular)
m= ½
Since points (-1, 2) lies on the given line, it satisfies the equation y = mx + c.
Now, substitute the value of m, (x, y) coordinates in the equation:
2 = m(-1) + c
2 = ½(-1) + c
2 = -½ + c
C = 2 + (½)
C = 5/2
Therefore, the value of m and c are ½ and 5/2 respectively.
Thanks