3. lakota1999

....

4. Nnesha

slope = rise over run 2nd one is incorrect.

how would i do it?

6. Nnesha

tell how did you get the answer for first one ?

honestly all i did was put 2 on y and looked at y and seen i got 4 in between i dont really know how to do this stuff...

8. Nnesha

for slope : 2 ways you can pick two points and use the slope formula OR you can use slope =rise over run definition

9. Nnesha

|dw:1443472861006:dw|

10. imqwerty

jst do 1 thing if u have any equation like this- $ax+by=c$then just divide all over by c u get-$\frac{ ax }{ c }+\frac{ by }{ c }=\frac{ c }{ c}$$\frac{ x }{\frac{ c }{ a } }+\frac{ y }{ \frac{ c }{ b } }=1$ now when u get this the c/a is the point where the line cuts x axis in 1st case c/a=2 so line will cut x axis at (2,0) and c/b= the point where line cuts y axis in 1st case its (0,2) so jst join these to points and thats ur line

11. Nnesha

|dw:1443472884776:dw| rise = how many units it's going up and then run(right ) unit

5 1/2 and 9?

13. Nnesha

|dw:1443473002597:dw|these are the points u need to focus on

14. lakota1999

type the damm

. . . yeah its moving to the right 2 points which would be 2x then up 1 which would be 2x+1 but thats not an option i have

16. Nnesha

yes right 2 point and up 1

17. lakota1999

thing

18. Nnesha

forget about y-intercept for a sec just focus on slope slope = rise /run

19. Nnesha

going up 1 unit that's rise goin right 2 unit that's run $\huge\rm \frac{ rise }{ run}$

20. Nnesha

so replace rise with one run with 2 that's just the slope

21. Nnesha

and as mentioned above y-intercept is a point where line intersect y-axis

22. lakota1999

symmetry. what is that

1/2x-1 correct?

24. Nnesha

looks good

thank you

26. Nnesha

for first just like mentioned above if it's in standard form we should rewrite in slope intercept to graph it

27. Nnesha

so solve 2x+2y=4 for y

i did and i got them both right :) thank you so much for helping me

29. imqwerty

np lol

30. Nnesha

few hint: if line is increasing = positive slope if line is decreasing = negative slope always!

31. Nnesha

good work.