## anonymous one year ago The variables x and y vary directly. Use the given values to write an equation that relates x and y. x = 5, y = 25 okay so im not 100% sure how to do this

1. Vocaloid

"vary directly" is the key phrase here this means that the equation will be y = kx, where k is a constant of variation so, we plug in x and y to figure out what k is

2. Plasmataco

Basically wat @Vocaloid is trying to say is y=whatever times x

3. anonymous

ohhh okay

4. Plasmataco

U sub y and x for the numbers given and you find the watever

5. anonymous

can you give me an example?

6. Plasmataco

Say y Carey's directly to x where x is 10 and y is 100

7. Plasmataco

Wtf what is wrong with my autocorrect?

8. anonymous

Bahhaha omg Carey's

9. Plasmataco

Say y varies directly to x where x is 10 and y is 100

10. Plasmataco

Hush...

11. Plasmataco

Anyways u sub in for y=kx

12. Plasmataco

100=k10

13. Plasmataco

K turns in 10. So the equation is y=10x

14. anonymous

ohh okay so the answer would be 25=k5

15. Plasmataco

Now solve for k

16. anonymous

Ahhh okay

17. anonymous

so its y=5x?

18. Plasmataco

Yes and btw wat the f are Carly's?

19. Plasmataco

I'm only 13

20. anonymous

Carly's? lmao

21. Plasmataco

Must know

22. anonymous

omg the fact that a 13 year old does math better than me bahah i respect u lol

23. anonymous

idk what that is lol

24. Plasmataco

I'm a stereotypical Asian. Count it as typical

25. anonymous