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Use the information provided to answer Part A and Part B. Justify youranswer using the CER method for part A as follows:Claim - The y - coordinate of the center of the circle is____Evidence - Show work used to solve for/find the y coordinate.Reasoning - Use the work you showed in "Evidence" to justify your "Claim".Come up with your own CER response for part B.The equation x^2 + y^2 - 4x + 2y = b describes a circle.A)Determine the y-coordinate of the center of the circle. b)The radius of the circle is 7 units. What is the value of b in the equation?
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