CHAPTER 13 DIRECT AND INVERSE PROPORTIONS
DIRECT PROPORTION
x and y are said to be in direct proportion if x/y = k or x = ky.
If x and y are in direct proportion, x1/y1=x2/y2
INVERSE PROPORTION
x and y are said to be in inverse proportion if xy=k.
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CBSE Class 8 Maths Notes for Chapter 13 Direct and Inverse Proportions
CHAPTER 13 DIRECT AND INVERSE PROPORTIONS
DIRECT PROPORTION
x and y are said to be in direct proportion if x/y = k or x = ky.
If x and y are in direct proportion, x1/y1=x2/y2
INVERSE PROPORTION
x and y are said to be in inverse proportion if xy=k.