Determine the equation of a circle with a center at (-4, 0) What is the equation of a circle with a center at (-4, 0)
that passes through the point (-2, 1) by following the
steps below.
that passes through the point (-2, 1)?
O²+y+4)² = √5
1. Use the distance formula to determine the radius:
d = √(x₂-x₂)²+(V₂-V₁)².
2. Substitute the known values into the standard form:
(x-h)² + (y-k)² = p².
Intro
O
(x-1)2 + (y + 2)² = 5
(x+4)² + y² = 5
(x + 2)² + (y-1)³√5
Done
