7.81.za 18 Sally made four graphs.
Part A
Which graph shows a proportional relationship between x and y?
18
16
14
12
101
(
812)
20
18
16.12.16)
14
12
10
8
6
4
214, 4)
2
0 2 4 6 8 10 12 14 16 18 20
(82)
6
4 $14, 4)
(0, 2)
0 2 4 6 8 10 12 14 16 18 20
С
A
20
18
16
14
12
10
8
(12,8)
6
4
2:14.02016, 2)
0246 8 10 12 14 16 18 20
20
18
16
14
12
10
8
6
4
2
(123) (16,4)
(82)
0 2 4 6 8 10 12 14 16 18 20
D
B
Part B
What is another point Sally could have plotted on the graph of the proportional relationship?
A
13. 10)
B
с
(68)

what is another point Sally could have plotted

A triangle has side lengths of 8

8

inches, 12

12

inches, and 16

16

inches.

Determine whether this is a right triangle and why.

CLEAR  CHECK

No, because 8‾√+12‾‾‾√

8

+

12

is not equal to 16‾‾‾√

16

.

Yes, because 8‾√+12‾‾‾√

8

+

12

is equal to 16‾‾‾√

16

.

No, because 82+122

8

2

+

12

2

is not equal to 162

16

2

.

Yes, because 82+122

8

2

+

12

2

is equal to 162

16

2

.

Step-by-step explanation:

the terms of a geometric sequence can be found by beginning with the first term and multiplying by the common ratio repeatedly. a recursive formula for a geometric sequence with common ratio r is given by an=ran−1 a n = r a n − 1 for n≥2 n ≥ 2 .

step-by-step explanation:

step-by-step explanation: