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Nowellkwaku
13.12.2019 •
Mathematics
50 points and brainliest!
write the general equation for the circle that passes through the points: (1, 7) (8, 6) (7, -1)
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Ответ:
Step-by-step explanation:
The general equation of a circle is , x² + y² + 2gx + 2fy + c = 0
Substituting the three points we get the following equations,
2g +14f +c=-50
14g - 2f + c =-50
16g +12f + c = -100
Solving these equations we get,
g =-4, f = -3, c = 0
Hence general equation of circle is,
x² + y² - 8x - 6y = 0
Ответ:
5x/2-3/2=2y/2
2.5x-1.5=y
2.5 is the slope