SOLUTION: Find an equation of the circle with center at the origin which passes through the point P(5,-3)

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Question 1160508: Find an equation of the circle with center at the origin which passes through the point P(5,-3)

Found 2 solutions by MathLover1, MathTherapy:
Answer by MathLover1(20850) (Show Source):
You can put this solution on YOUR website!

an equation of the circle is:
where and are coordinates of the center, and is a radius
given:
the circle with center at the origin, means and
so far your equation is

.....use given: circle passes through the point P(,) to calculate

and your equation is

Answer by MathTherapy(10552) (Show Source):
You can put this solution on YOUR website!

Find an equation of the circle with center at the origin which passes through the point P(5,-3)

Equation of a circle:
------ Substituting (0, 0) for (h, k), and (5, - 3) for (x, y)

Equation of THIS circle: