One-Parameter Family of Curves/Examples/Circles of Equal Radius with Centers along x-Axis

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Example of One-Parameter Family of Curves

Consider the equation:

$(1): \quad \paren {x - h}^2 + y^2 = a^2$

where $a$ is constant.


$(1)$ defines a one-parameter family of circles of constant radius $a$ whose centers are on the $x$-axis of a Cartesian plane at $\tuple {h, 0}$ determined by values of the parameter $h$.


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