1A. The set of points in a plane that are equidistant from a given point is called a _______.
A. square
B. sphere
C. segment
D. circle
1B. The given point is called the _______.
A. vertex
B. center
C. axis
D. radius
2. The equation x^2+y^2-4x+2y=b describes a circle.
Part A.
Determine the y-coordinate of the center of the circle.
Part B.
The radius of the circle is 7 units. What is the value of b in the equation?
3. Point Q lies on ST, where point S is located at (-2, -6) and point T is located at (5, 8).
If SQ:QT = 5:2, where is point Q on ST? Give the coordinates for Q.
(Use Image #1)
4. The circle with center F is divided into sectors. In circle F, EB is a diameter. The radius of circle F is 3 units.
Match each arc length to its subtended central angle.
(Use Image #2 & #3)