___ 1. Which of the following represents the distance between the two points (1, 1) and (2, 2)? a. = √(2 + 1)2 + (2 + 1)2 c. = √(2 − 1)2 + (2 − 1)2 b. = √(2 + 1)2 − (2 + 1)2 d. = √(2 − 1)2 − (2 − 1)2 ___ 2. What is the distance between the points (−3, 1) and (7, −3)? a. 6 b. 2√29 c. 14 d. 4√29 ___ 3. Point is the midpoint of ̅ ̅̅̅̅. Which of the following is true about the distances among , , ? a. ̅ ̅̅̅ = ̅ ̅̅̅̅ b. ̅ ̅̅̅ = ̅ ̅̅̅̅ c,. ̅ ̅̅̅ = ̅ ̅̅̅ d. 2|| = ̅ ̅̅̅ + ̅ ̅̅̅ ___ 4. Find the distance between the two given points: S (1, 3) and T (7, 11). a. 4 b. 8 c. 10 d. 15 ___ 5. What is the distance between H (-9, 3) and G (6, 3)? a. 4 b. 8 c. 10 d. 15 ___ 6. What is the standard equation of a circle with center at (ℎ, ) and a radius of units? a. ( − ℎ)2 + ( − )2 = 2 c. ( − ℎ)2 − ( − )2 = 2 b. ( + ℎ)2 + ( + )2 = 2 d. ( − ℎ)2 − ( − )2 = 2 ___ 7. What is the equation of the circle with center at (2, 7) and a radius of 6 units? a. ( − 7)2 + ( − 2)2 = 36 c. ( − 2)2 + ( − 6)2 = 49 b. ( − 2)2 + ( − 7)2 = 36 d. ( − 6)2 + ( − 2)2 = 49 ___ 8. Which of the following equations describe a circle on the coordinate plane with a radius of 4 units? a. ( − 4)2 + ( − 4)2 = 22 c. ( + 2)2 − ( + 2)2 = 42 b. ( − 2)2 + ( − 2)2 = 42 d. ( − 4)2 + ( − 4)2 = 162 ___ 9. What is the equation of the circle if the center is the origin? a. 2 + 2 = 2 b. 2 − 2 = 2 c. 2 + 2 = 0 d. 2 − 2 = 0 ___ 10. Write the standard form of the equation of a circle with center at (-5,6) and is tangent to the x-axis. a. ( − 5)2 + ( − 6)2 = 25 c. ( + 5)2 + ( − 6)2 = 36 b. ( + 5)2 + ( − 6)2 = 25 d. ( − 5)2 + ( − 6)2 = 36 ___ 11. What is the center of the circle whose equation is ( − 8)2 + ( + 2)2 = 25? a. (8, 2) b. (−8, 2) c. (−8, −2) d. (8, −2) ___ 12. What is the center of the circle whose equation is ( − 8)2 + ( + 2)2 = 25? a. 8 b. 2 c. 25 d. 5 ___ 13. The general equation of a circle is ___________. a. 2 + 2 + + + = 0 c. ( − ℎ)2 + ( − )2 = 2 b. 2 + 2 = 2 d. 2 − 2 − + + = 0 ___ 14. Find the center and radius of the circle 2 + 2 = 64. a. (2, 2) r=64 c. (0, 0) r=64 b. (2, 2) r=8 d. (0, 0) r=8 ___ 15. What is the center and the radius of the circle 2 + 2 − 6 − 10 + 18 = 0 a. (3, 5) r=16 c. (0, 0) r=16 b. (3, 5) r=4 d. (0, 0) r=4 ___ 16. Which of the following is the graph of 42 + 42 + 12 − 4 − 90 = 0? a. b. c. d. ​