The general form is x² + y² − 6x + 4y − 12 = 0. Converting from the standard form of (x − A)² + (y − B)² = C (with parameters A = 3, B = −2, and C = 25) to x² + y² + Dx + Ey + F = 0, we calculate:
D = −2A = −6;
E = −2B = 4; and
F = A² + B² − C = −12.
Read more