Datasheet

9. a. y = 0.36x + 3.81
b. y = −0.8x + 2.4
10. (0.5, 2)
11. a.
()()
22
22550 −−+−−.
= 6.8
b.
()()
22
62650 −+−. = 6.8
12. a.
()()
22
42250 −+−−. = 3.2
b.
()()
22
42550 −+−−.
= 3.2
13. The diagonals bisect each other.
14. a. SSS Congruency
b. SSS Congruency
v
2
(2, 6)
(7, 2)
(0, 0)
v
1
15. ABC
≅ ∠ CDA & BAD ∠ ∠
≅
∠
DCB
16 Opposite angles of a parallelogram are equal.
17. v
1,
+ v
2
= 89,
18. a. v
1
=
22
62 + = 6.32 units
b. v
2
=
22
27 + = 7.28 units
c. v
1,
+ v
2
=
22
89 + = 12.04 units
Activity 7 • Geometry with the Casio fx-9750GII