Equation of a Circle — Unit test Answers

Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. Which statements are true? Select three options. The radius of the circle is 3 units.The center of the circle lies on the x-axis.The center of the circle lies on the y-axis.The standard form of the equation is (x – 1)² + y² = 3.The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.

Circle T is shown. Angle Q S R intercepts arc Q R. Angle Q S R is 52 degrees.

AD and MN are chords that intersect at point B.

Line segments XY and ZY are tangent to circle O.

Circle C is shown. Secants U W and Y W intersect at point W outside of the circle. Secant U W intersect the circle at point V and secant Y W intersects the circle at point X.