07-04-2015
Mathematics

Answered

Complete the first step in writing the equation of a circle in graphing form.

EQUATION: x2 – 2x + y2 + 6y – 6 = 0

STEP 1: x2 – 2x + y2 + 6y = _________

Answer :

Panoyin Panoyin

07-04-2015

x² - 2x + y² + 6y - 6 = 0
x² - 2x + y² + 6y = 6
(x² - 2x + 1) + (y² + 6y + 9) = 6 + 1 + 9
(x - 1)² + (y + 3)² = 16
center: (h, k) = (x, y) = (1, -3)
radius: 4

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