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yennie123
27.10.2019 •
Mathematics
Find the point on the line y = 5x + 4 that is closest to the origin. (x, y) = $$− 10 13, 2 13
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Ответ:
the point on the line y = 5x + 4 that is closest to the origin will be on the perpendicular line through the origin,
the line
y=5x+4---------> the slope is m1=5
if two lines are perpendicular
m1*m2=-1-----------> m2=-1/m1
so
m2=-1/5
y = (-1/5)x
so will satisfy
(-1/5)x = 5x +4
(-26/5)x = 4
x = 4*(-5/26) = -10/13
y = (-1/5)x = 2/13
The answer is
the point (-10/13, 2/13)
see the attached figure
Ответ: