The equation of the circle in standard form is: (x + 2)² + (y - 1)² = 1
What is the equation of the circle?
The general form of the equation of a circle is:
(x - h)² + (y - k)² = r²
Where;
(h, K) is the coordinate of the center of the circle.
r is radius.
To find the equation of the circle in standard form, we need to determine the center and radius of the circle.
Since the center of the circle lies on the line y = 3x + 1 and is tangent to the x-axis at (-2,0), we can determine that the center of the circle is (-2,1) and the radius is 1.
Therefore, the equation of the circle in standard form is:
(x + 2)² + (y - 1)² = 1