## Spring98 one year ago Alec calculated the slope of line AC between points A and B. Avis calculated the slope of line AC between points B and C. Both Alec and Avis drew triangles, as shown below, to calculate the slopes: Which statement is correct about the slopes calculated by Alec and Avis if both calculated the slopes accurately? A. Both calculated the slope as 3. B. Both calculated the slope as 1/3 . C. Alec calculated the slope as 1/3 and Avis calculated it as 3. D. Alec calculated the slope as 3 and Avis calculated it as 1/3.

1. Nnesha

where are the lines ?

2. Spring98

hold on!

3. Spring98
4. Nnesha

alright so write point A and B in order pair A(? ,? ) point B( ? , ?) on the graph :-)

5. Nnesha

for example point A ( 0 ,0) so point B (? ,? ) ?

6. Spring98

1,2

7. Spring98

i mean (6,2)

8. Nnesha

yes right now use slope formula $\huge\rm \frac{ y_2 - y_1 }{ x_2 - x_1 }$ plug in x and y values

9. Nnesha

|dw:1433384182543:dw|

10. Spring98

12, and 4?

11. Nnesha

nope plug in x and y values how did you get 12 and 4 ?

12. Spring98

i squared it

13. Nnesha

nope y_2 it is not square that's mean 2nd y

14. Nnesha

y_1 first y y_2 2nd y which is y_2 = 2 y_1 = 0

15. Nnesha

$\huge\rm \frac{ 2-0 }{ 6-0 }$ like this x_1=0 x_2 =6 y_1=0 y_2 = 2

16. Spring98

ok so how do i find the answer?

17. Nnesha

solve that

18. Spring98

i don't know how to

19. Spring98

it doesn't make sence to me

20. Nnesha

$\huge\rm \frac{ 2-0 }{ 6-0 } = ?$

21. Nnesha

why not ?

22. Spring98

2/6

23. Nnesha

$\huge\rm \frac{ y_2 - y_1 }{ x_2 - x_1 }$ formula to find slope between A and B point A(0,0) B(6,2) that's how i plug in x and y values now just solve reduce the fraction

24. Nnesha

2/6 reduce the fraction

25. Spring98

1/3

26. Nnesha

yes right that's a slope of points A and B now find slope of points B and C just like did

27. Spring98

there is only 3 left

28. Nnesha

what do you mean ?

29. Spring98

there is only 3 left out of the numbers.

30. Nnesha

how do you know both didn't get same slope ?

31. Nnesha

point B is (6,2) what is point C (?? , ??)

32. Spring98

oh sorry i got off track its (16,8)

33. Nnesha

yes right now find slope between B and C points use slope formula (6,2)(16,8) find slope

34. Spring98

how do i do that?

35. Nnesha

just like we did for point A and B use that formula plug in x and y values

36. Spring98

can you tell me how?

37. Nnesha

|dw:1433385627509:dw| now plug in numbers

38. Nnesha

ello what did you get ?? try it plz!

39. Spring98

can ou help me?

40. Agl202

Yo susa

41. Spring98

what the?

42. Spring98

tu sho?

43. Agl202

Ay vay

44. Spring98

medal me

45. Agl202

Перш ты мене