1.

In the following table find out x and y vary directly or inversely?x81632256y321681

Answer»

From the table itself we observe that as x increases y decreases. 

∴ x and y are inversely proportional 

∴ xy = 8 x 32 = 16 x 16 = 32 x 8 = 256 x 1 

= 256



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