Answer: A, because the equation of a circle is . So, if the point of the center is and the radius , then on the equation should be changed as negative and the radius should be multiplied as , which is
I don't know for sure I'm going to ace grade next year but I know that you you need to put the coefficients with the same variable together and the variable next to the coefficients and multiply or add or divide or subtract them and you get your answer and this is just 7th grade math I'm relying on