SOLUTION: The centre of a circle is (2x-1, 3x + 1). Find x if the circle passes through (-3,-1) and the length of its diameter is 20 unit.

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Question 895413: The centre of a circle is (2x-1, 3x + 1). Find x if the circle passes through (-3,-1) and the length of its diameter is 20 unit.

Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
The distance from (2x-1, 3x + 1) to (-3,-1) is 20 units.
Use Distance Formula, and ... solve for x.

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Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!
The centre of a circle is (2x-1, 3x + 1). Find x if the circle passes through (-3,-1) and the length of its diameter is 20 unit.

Center-radius equation of a circle: , with:
(x, y) being: (, )
(h, k) being: (, ), and
r, or radius being: 10
becomes: ____Substituting values into center-radius equation of a circle








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