Question

For the direct variation y = (-3/8) when x = (-2/3), how do you find the constant of variation and find the value of y when x = 3?

Answer 1

`y =1 11/16`

Explanation:

`x prop y or x = k *y or k = x/y or k = (-2/3)/(-3/8) = 16/9 ; k` is a constant. The variation equuation is `x/y=16/9 ; x=3 ; y= ?`

`3/y=16/9 or y = (9*3)/16 =27/16 = 1 11/16` [Ans]