Question

Graph the circle x2 + y2 - 4x – 10y + 20 = 0.

Answer 1

See Attachment.

General Formulas and Concepts:

Algebra I

• Coordinates (x, y)
• Graphing

Pre-Calculus

Center-Radius Form: (x - h)² + (y - k)² = r²

• (h, k) is center
• r is radius

Explanation:

To graph by hand, complete the square for each respective variable to put the standard form into center-radius form.