For each table, determine whether it shows a direct variation. If it does, write its direct variation equation.

Question

X column has 4, 5, and 9

Y column has 5, 6.25 and 11.25

Is it a direct variation?

Is it not a direct variation?

Answer 1

y=1.25x

or

y =5x/4

where constant of variation= 5/4 = 1.25

11.25 = 5(9)/4 = 45/4 = 11.25

6.25 = 5(5)/4 = 25/4 = 6.25

5 = 5(4)/4 = 20/4= 5

it's direct variation