SOLUTION: Write the equation of the circle if the center is on the x-axis and it is passing through (0,0) and (2,4)
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Question 1124882: Write the equation of the circle if the center is on the x-axis and it is passing through (0,0) and (2,4)
Answer by math_helper(2461) (Show Source): You can put this solution on YOUR website!
The general equation of a circle with center at (h,k) and radius r is:
What is known:
and
Solving the bottom equation for h:
Center is at (5,0), r=5, so the equation is:
——
Check: (2,4) should solve the equation:
(ok)
(0,0) should also solve the equation:
(ok)
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