## anonymous one year ago MEDAL Which describes the slope of this line? A. negative slope B. zero slope C. positive slope D. undefined slope

1. anonymous

2. dakid88

the slope of a line is y2 -y1 / x2 -x1 i will pick x1 = 0 and x2 = 2 The slope becomes -2 - (-2) / 2-0 = 0/2= 0 zero slope which is answer d.

3. anonymous

huh

4. dakid88

5. anonymous

ok thanks

6. dakid88

welcome can i have a medal

7. anonymous

Zero Slope

8. dakid88

wht

9. anonymous

so which one

10. dakid88

d

11. FireKat97

B

12. dakid88

it is d

13. dakid88

@pinklion23

14. anonymous

why is it d or b?

15. dakid88

@mbma526

16. dakid88

d

17. FireKat97

|dw:1443791275677:dw| an undefined slope looks like this

18. dakid88

no it dont firekate

19. anonymous

Its zero Slpoe I promise!!!

20. FireKat97

sorry thats the x axis being cut off in my diagram :/

21. dakid88

@triciaal

22. anonymous

ok well im even more confused now

23. dakid88

|dw:1443791449704:dw|

24. dakid88

|dw:1443791525618:dw|

25. FireKat97

its zero, I'm not too sure how I can explain this properly, but for horizontal lines, the slope is always zero

26. anonymous

Dude just stop your only saying D so you can get the stupid medal but at this point idc about it I just want him to get the right answer!

27. Nnesha

formula to find slope $\huge\rm \frac{ y_2-y_1}{ x_2-x_1 }$ since the line is horizontal |dw:1443791506934:dw| horizontal line when y is constant and x values are changing

28. dakid88

u dont tell me wht to do redneckk and me too

29. Nnesha

let's say we have (2,3)(4, 3)( notice y values are the same ) plugin $\frac{ 3-3 }{ 4-2 }$ when you subtract same numbers what would you get in this question 3-3 =?

30. Nnesha

remember the formula is = change in y's over change in x's

31. anonymous

ok so im going with zero slope thank you everyone i'll tell you who's right a bit later and medal them

32. Nnesha

did you understand ???

33. anonymous

yeah a bit that helps with the rest of the questions i might have thank you

34. Nnesha

alright just practice remember when we subtract same numbers we will get zero so zero divided by anything would be just 0

35. anonymous

ok got it :)

36. Nnesha

let's say if we have vertical line |dw:1443791845577:dw| in this questions x value would stay the same

37. Nnesha

so when substitute points into the formula (3,2)(3,4) (x values would be the same ) $\frac{ 4-2 }{ 3-3 }= ???$

38. Nnesha

i'm pretty sure ur next question would be on vertical line slope

39. anonymous

yeah it is

40. Nnesha

alright so $$\color{blue}{\text{Originally Posted by}}$$ @Nnesha so when substitute points into the formula (3,2)(3,4) (x values would be the same ) $\frac{ 4-2 }{ 3-3 }= ???$ $$\color{blue}{\text{End of Quote}}$$ solve this

41. anonymous

2/0

42. Nnesha

i just picked two points but for vertical line x -coordinate would be the same 4sure

43. Nnesha

right so answer would be what 2/0 = ?

44. anonymous

0 so zero slope?

45. Nnesha

no no you can't divide by zero whenever u get 0 at the denominator  answer would be undefined bec you can't divide by 0

46. anonymous

oh undefined ok bc thats what i originally thought

47. dakid88

i told u

48. anonymous

i knew there was some rule between the horizontal or vertical slope i just forgot which

49. anonymous

@dakid88 we're on a different question so actually, you're wrong

50. dakid88