## anonymous one year ago Please help will fan and medal!!! Determine whether y varies directly with x. If so, find the constant of variation k. x y 4 6.4 7 11.2 10 16 13 20.8

1. Nnesha

$\huge\rm y=kx$ equation for direct variation and k is constant of variation so pick any (x,y) and plug them into the equation

2. Nnesha

make sense ?

3. anonymous

yeah that helped! im just trying to figure out the last part. find the constant variation of k and write an equation.. @Nnesha

4. Nnesha

yes so k is what ? did you solve that ?

5. anonymous

its 1.6 right??

6. Nnesha

yes that's right now replace k with 1.6 in this equation y=kx that's it

7. anonymous

y= 1.6x like that?

8. anonymous

@Nnesha

9. Nnesha

yes right :=)

10. anonymous

Thank you!! @Nnesha

11. Nnesha

yw :=)