lilbuh
03.02.2020 •
Mathematics
The equation for the circle is:
x^2 + y^2 - 12x + 6y - 19 = 0
what is the center of the circle?
a. (-6, 3)
b. (12, -6)
c. (6, -3)
d. (-12, 6)
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Ответ:
C. (6, -3)
Step-by-step explanation:
The x- and y-coordinates are the opposite of half the corresponding linear term coefficient:
-(-12, 6)/2 = (6, -3)
This can be confirmed using a graphing calculator.
Ответ: