Transcript Document 7185603

• distance
• midpoint
• segment bisector
Find Distance on a Number Line
Use the number line to find QR.
The coordinates of Q and R are –6 and –3.
QR = | –6 – (–3) |
= | –3 | or 3
Answer: 3
Distance Formula
Simplify.
Use the number line to find AX.
A. 2
B. 8
0%
B
A
0%
A
B
C
0%
D
D
D. –8
C
C. –2
A.
B.
C.
0%
D.
Find Distance on a Coordinate Plane
Find the distance between E(–4, 1) and F(3, –1).
(x1, y1) = (–4, 1) and
(x2, y2) = (3, –1)
Find Distance on a Coordinate Plane
Check Graph the ordered pairs
and check by using the
Pythagorean Theorem.
Find the distance between A(–3, 4) and M(1, 2).
A. 4
B.
0%
B
A
0%
A
B
C
0%
D
D
D.
A.
B.
C.
0%
D.
C
C.
• Finding the Midpoint
DRAG RACING The length of a drag racing strip is
mile long. How many feet from the finish line is
the midpoint of the racing strip?
A. 330 ft
0%
B
D. 1320 ft
A
0%
A
B
C
0%
D
D
C. 990 ft
C
B. 660 ft
A.
B.
C.
0%
D.
Find Midpoint in Coordinate Plane
Answer: (–3, 3)
A. (–10, –6)
0%
B
0%
A
D. (–6, –12)
A
B
C
0%
D
D
C. (6, 12)
A.
B.
C.
0%
D.
C
B. (–5, –3)
Find the Coordinates of an Endpoint
Let D be (x1, y1) and F be (x2, y2) in the Midpoint
Formula.
(x2, y2) =
Write two equations to find the coordinates of D.
Find the Coordinates of an Endpoint
Midpoint Formula
Midpoint Formula
Answer: The coordinates of D are (–7, 11).
Find the coordinates of R if N (8, –3) is the midpoint
of RS and S has coordinates (–1, 5).
A. (3.5, 1)
0%
B
0%
A
D. (17, –11)
A
B
C
0%
D
D
C. (15, –1)
A.
B.
C.
0%
D.
C
B. (–10, 13)