Question

In which of the following are tables x and y directly proportional? Find the constant of variation
in cases of direct proportion.
3
5.
8
11
23
1
12
20
32
44
92
3.5
4
8.5
11.5
ii.
10.5
12
25.5
46
5
15
17.5
27.5
3
9
10.5
16.5​

Answer 1

Answer:

: 3 = 1 x ¹

: 5 = 1 x ¹

: 8 = 4 x¹

: 1 ¹ × 1¹ = 4 : 2² ×4¹ = 80.22²

1x 4 = 4 x 5 = 20 = 80. 22² ..

: 80 : 22 x 20 = 22 / 44..

: 22/44 = 80. × 8 = 64. 88 ²

Answer 2

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