#10

1. N P M x L S . #10 . . ~ . Name: Period: Use the coordinate grid to the right to answer questions 1-4. Which is not a name for the plane? Plane S, Plane PMN, Plane LMN, Plane PLM (circle one) # 1 Points L, M, and N are _________________ # 2 Points P, M, and N are _________________ # 3 Find the coordinates of the midpoint of PM . # 4   x and y are vertical angles. If m x is 6x – 5 and m y is 2x + 11, what is the m y?    # 5    If D is in the interior of angle ABC, then m ABD + m ______ = m ABC. # 6 x ft 3ft 5ft 2ft # 7 Name the midpoint of VY. W X Y Z V What is the length of VZ? # 8 Solve for y: 2x + 2y = 10 # 9 Solve for y: x + y = 10 # 10

2. . #10b . . ~ . Fill in the reasons for the geometric proof. Given: AB = CD, BC = DE Prove: C is the midpoint of AE. # 11 A B C D E Given the following conditional statement, identify the logically equivalent statement: “If it is not October, then there are not 31 days in the month.” If it is October, then there are 31 days in the month. If there are 31 days in the month, then it is October. If there are not 31 days in the month, then it is not October. # 12 While finding the distance between A(5,2) and B(-10,22), Ms. Mo made an error in her calculation. Identify the step in which her first mistake was made. # 13 a) b) c) d) Wrong Step: _____________ e) Explain Ms. Mo’s mistake using a full sentence(s). _______________________________________ _____________________________________________________________________________