Precalculus Review Section 4

Find the equation of a circle in standard form and identify the center and radius of the circle based on the given information. 1. The circle that is tangent to the y-axis and center is (-5, 4). 2. The circle that is tangent to the x-axis and center is (3,-2). 3. Center is (-3, 1) and goes through (2, 4). 4. ................
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