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Question

# Find an equation of the circle that satisfies the stated conditions.Center $C(4,-1)$, tangent to the $x$-axis

Solution

Verified
Step 1
1 of 4

To find an equation to a circle, follow the steps below

1. determine the coordinates for a center $(C)$ and the value of a radius $(r)$
2. substitute the values to the equation

$(x-h)^2+(y-k)^2=r^2$

Note that when the center $(C)$ is $(0,0)$, we reduce the equation to

$x^2+y^2=r^2$

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