Q16 of 37 Page 195

Let us fill in the blanks :

i. If and then x∝ _______


ii. If x ∝ y, xn∝ ________


iii. If x ∝ y and x ∝ z, then (y + z)∝ ________

(i) Given:



Put the value of y in x.




As k and m are constant.


⇒ x ∝ z


Hence, If and then x ∝ _z.


(ii) Given: x ∝ y


x = ky


xn = kn.yn


where kn is a constant.


Hence xn ∝ yn


Hence, If __yn_


(iii) Given: x ∝ y and x ∝ z


x = ky and x = mz



Hence, y + z = ?





So, y + z ∝ x


If and then __x__


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