Problem

Find the standard form of the equation for the circle with the following properties.
Center (9,74) and tangent to the y-axis

Answer

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Answer

Final Answer: The standard form of the equation for the circle is (x9)2+(y74)2=81.

Steps

Step 1 :The standard form of the equation for a circle is (xh)2+(yk)2=r2, where (h,k) is the center of the circle and r is the radius.

Step 2 :Given that the circle is tangent to the y-axis, the radius of the circle is equal to the x-coordinate of the center. Therefore, the radius is 9.

Step 3 :Substitute the center (9,74) and the radius 9 into the standard form of the equation for a circle to get the equation of the circle.

Step 4 :The final equation is (x9)2+(y74)2=92.

Step 5 :Final Answer: The standard form of the equation for the circle is (x9)2+(y74)2=81.

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