Math, asked by jyoti616, 10 months ago

determine from the value of x and y given below whether they vary directly, inversely or in neither of these ways​

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Answered by Anonymous
12

Answer:

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

Answered by khushal546
3

x and y are directly proportional because their ratio are constant

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