SOLUTION: Find an equation of a circle satisfying the given conditions a) center (2,4) and tangent to the x axis Can you please help me out thanks so much in advance:)

Question 798473: Find an equation of a circle satisfying the given conditions
a) center (2,4) and tangent to the x axis
Can you please help me out thanks so much in advance:)
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!
You want the radius to be 4 units, so as to be center offset that many units. You already know the given center, so

Notice how the "r" and the "k" would compare in the standard form.

Showing the lower half of the relation as a function, slightly narrowed view field:

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