Chapter11: Conics
Section11.1: Distance And Midpoint Formulas; Circles
Problem 11.20TI: Find the center and radius, then (b) graph the circle: x2+y2+6x2y+1=0.
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(a) find the center (h, k) and radius r of each
x2 + y2 + x + y - 1/2 = 0
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