## anonymous one year ago http://prntscr.com/8b7fd2 Please help me do a equation out of this to find the slope with the formula of y2-y1/x2-x1

1. zzr0ck3r

do a equation?

2. anonymous

The graph is what i am supposed to use (click the link in my question)

3. zzr0ck3r

I don't understand "do a equation" what do you need to do?

4. anonymous

You have to pick two points on the line

5. anonymous

that doesn't look like the right graph

6. anonymous

$y2-y1$ ------- $x2-x1$

7. anonymous

It is.

8. anonymous

that is slope formula yes.

9. anonymous

do we just have to make something up or are we trying to find the slope of a certain line?

10. anonymous

$\frac{ }{ 20-70 }$

11. anonymous

you need 2 points

12. anonymous

(20,70)

13. anonymous

For worm B.

14. anonymous

thats one point, you need two

15. anonymous

so 20x and 70y is the first point. (20, 70)

16. anonymous

So, (20,70) and (25,80)

17. anonymous

Right????

18. anonymous

yup, good job

19. anonymous

now, take the y variables and subtract them like this, 80y - 70y and subtract the x varibels 20x - 25x

20. anonymous

$\frac{ 70-80 }{ 25-20 }$

21. anonymous

|dw:1441070468026:dw|

22. anonymous

simplify 10/5 =

23. anonymous

So the answer would be $70-80=10$ $25-20=5$ $\frac{ 10}{ 5 }$ $2?$

24. anonymous

yup

25. anonymous

the slope of the line is 2.

26. anonymous

$10\div5=2$ $5\div5=1$ So then the answer is 2!

27. anonymous

Ok Thank you!

28. anonymous

Good going. you got it!

29. anonymous

Happy to help.