## anonymous one year ago What is the slope of the line that passes through the points (1, 7) and (–4, –8)? A. –3 B. -1/3 C. 1/3 D. 3

1. uri

use the slope formula

2. pooja195

$\huge~\frac{ y2-y2 }{ x2-x1 }$

3. pooja195

(x1,y1) (x2,y2)

4. uri

omg why am i helping?! not supposed to help, byez

5. anonymous

why not D: @uri

6. anonymous

and i understand the formula i did it and got -4/6 i just am lossed from there.

7. Black_ninja123

its actually D

8. anonymous

how do you figure?

9. Black_ninja123

$\frac{ -8-7 }{ -4-1 }$

10. uri

i love you and all but i cant bear kids like pooja @Swordsman1305

11. Black_ninja123

$\frac{ -15 }{ -5 }=3$

12. anonymous

oh.. well pooj left

13. Black_ninja123

pooja formula was wrong she wrote y2-y2 and its actually y2-y1

14. anonymous

black i thought i was supposed to do 8-4 and 7-1?

15. anonymous

yes.. i think so>? pooja right?

16. Black_ninja123

y2 is -8 and y1 is 7 so -8-7= -15

17. Black_ninja123

x2 is -4 and x1 is 1 -4-1=5

18. anonymous

well anyway i dont do y2= -8 y1= -4 x2 = 7 x1= 1 and then -8-(-4) 7-1 and get -4/6?

19. Black_ninja123

-5*

20. anonymous

so what i did is the wrong way?

21. Black_ninja123

y1 is 7 not -4

22. Black_ninja123

x1=1 y1=7 x2=-4 y2=-8

23. anonymous

ugh this is soo confusing i went off what you said here http://openstudy.com/study#/updates/556de732e4b01de5673c84b4 @Black_ninja123

24. Black_ninja123

Oh i'm so sorry for that i got the numbers mixed up

25. anonymous

so it was the wrong answer?

26. Black_ninja123

Use the example i just gave you

27. Black_ninja123

the answer is right

28. Black_ninja123
29. anonymous

so the first one is right.. you just mixed up the formula set up a bit?

30. anonymous

ok well just to clarrify this one is D and the last one i asked was the right one that you gave? correct?

31. anonymous

ok thanks i gave u medal

32. Black_ninja123

yes sorry I made things confusing

33. Black_ninja123

I a horrible at explaining things

34. Black_ninja123

am*

35. anonymous

its ok i tagged u to another question.. perhaps u want another medal? :D