9
QuizMultiple Choice
Figures in the Coordinate Plane (Sec 9-1) — Unit test
Question 9 • Geometry B-CR
On a coordinate plane, quadrilateral J K L M with diagonals is shown. Point J is at (4, 5), point K is at (5, 1), point L is at (1, 2), and point M is at (1, 5).
Answer
A
∠M is a right angle and MK bisects ∠LMJ.B
LM = JM = 3 and JK = LK = .
C
MK intersects LJ at its midpoint.D
The slope of MK is –1 and the slope of LJ is 1.