Find the formula for an indirect proportion, knowing that its graph goes through the point

Question

B( 2/3 ,1 4/5 )

B(

2

3

,1

4

5

)

Answer 1

y varies inversely as x if y = k/x, for some constant, k.

 

Since (2/3, 9/5) lies on the curve, 9/5 = k/(2/3)

 

                                                  k = 1.2

 

So, y = 1.2/x