Question

10. If the values of x are 12, 3, 27, 6 and the values of y are 9, 36, 4, 18; then x & y vary:
(1 Point)
Both
Inversely
None
Directly​

Answer 1

इन वर्ड से स्टोरी बना कर फोटो खींच कर भेजो।

Answer 2

Given : Tables of Values of X & Y

To find : Relation between X & Y Directly proportional , inversely proportional or nothing

Step-by-step explanation:

if directly proportional

=> x ∝ y

=> x/y = k ( constant)

if inversely proportional

=> x ∝ 1/y

=> xy = k ( constant)

Lets check these two results for

x 12 3 27 6 2

y 9 36 4 18 54

x/y 4/3 1/12 27/4 1/3 1/27 - not Constant

xy 108 108 108 108 108 - Constant

xy = Constant

Hence inversely proportional

x 4 20 30 40 60 80

y 2 8 10 15 20 25

x/y 2 5/2 3 8/3 3 16/5 - not Constant

xy 8 160 300 600 1200 2000 - not Constant

Neither Directly proportional nor inversely proportional

x 2 9 7 4 3

y 10 45 35 20 15

x/y 1/5 1/5 1/5 1/5 1/5 Constant

x/y is constant

Hence Directly proportional