## anonymous one year ago Which of the ordered pairs in the form (x, y) is a solution of this equation? https://static.k12.com/bank_packages/files/media/mathml_64c9ba5aa2aeeeced75887bdf6c858db5c69d76f_1.gif A.The first is not a solution, but the second is. B.Both are solutions. C.Neither is a solution. D.The first is a solution, but the second is not.

1. anonymous

@Nnesha

2. anonymous

@triciaal

3. dakid88

@mbma526

4. Nnesha

substitute x and y for each pair then solve if you get equal sides then order pair is a solution

5. Nnesha

$\huge\rm 5x-\frac{ y }{ 3 }=13$ substitute (x,y) for (2,-9) replace x with 2 and y with -9

6. triciaal

as above. if the substitution (x,y) makes the equation true then (x,y) is a solution.

7. anonymous

$10-\frac{ -2 }{ 3}=13$

8. triciaal

y = -9

9. Nnesha

y= -9 (2,-9)

10. anonymous

ok so then the answer is D?

11. Nnesha

did you try 2nd one ?

12. anonymous

oh right i have to do that on lol :)

13. Nnesha

yes substitute (x,y) for (3,-6)

14. anonymous

$15-\frac{ -6 }{ 3 }=13$

15. anonymous

right?

16. Nnesha

looks good what did you get at left side ?

17. anonymous

um well -6/3=-2 so then 15+2does not equal 13 right

18. Nnesha

perfect!

19. anonymous

yea can you help me with one or two more please x)

20. Nnesha

i'll try

21. anonymous

Which pair are solutions to the equation? 4xy + 8 = 36 A.(1, 7) and (4, 9) B.(7, 1) and (3, 2) C.(1, 7) and (7, 1) D.(4, 9) and (3, 2)

22. anonymous

@Nnesha

23. Nnesha

same steps

24. anonymous

so A is wrong

25. anonymous

B is wrong

26. anonymous

c is right and D is wrong so C is the answer

27. Nnesha

why do you think C is correct ?? :=)

28. anonymous

because 4*1*7=28+1=36 and 4*7*1+8=36 too

29. Nnesha

good work!

30. anonymous

thx one more pls this one is harder

31. anonymous

Which ordered pairs in the form (x, y) are solutions to the equation (x + 6)y = 9? Choose all answers that are correct. A.(−5, 9) B.(−3, 3) C.(3, 1) D.(7, 9)

32. anonymous

oh um brb bathroom break sorry

33. Nnesha

same steps

34. anonymous

im back and you changed you pic :)

35. Nnesha

yee :P

36. anonymous

so A is right

37. anonymous

b is right

38. anonymous

c is right

39. anonymous

and D is wrong

40. anonymous

am i right?

41. Nnesha

ye you got it!

42. anonymous

thx so much that is it your awesome :)

43. Nnesha

np&thanks