## caishaax3 one year ago Write the equation of the line that passes through (–1, 5) and has a slope of 3 in point-slope form.

1. Caishaax3

A. y=3x+2 B. y=3x+8 C. y=-3x-2 D. y=-3x+8

2. anonymous

Point slope-formula: $y-y_{1}=m(x-x _{1})$

3. anonymous

(-1,5) is the$\left( x _{1},y _{1} \right)$

4. anonymous

And m=3

5. anonymous

Plug them in.

6. anonymous

|dw:1438132689777:dw|

7. Caishaax3

i some how ended up with y=8x

8. anonymous

Oh you shouldn't add 5 and 3x. :)

9. anonymous

What is 3(x+1)?

10. anonymous

11. Caishaax3

x+1 is just x so wouldnt it be just 3x?

12. anonymous

|dw:1438133039031:dw|

13. anonymous

You forgot to multiply 3 and 1. :)

14. Caishaax3

3 times 1 is 3 not 1 though

15. anonymous

|dw:1438133216169:dw|

16. anonymous

My work here is done. You should know the answer by now. :D

17. Caishaax3

now do i move the 5 over by adding it to both sides

18. anonymous

Yes!

19. Caishaax3

giving me y=3x+8?

20. anonymous

You got it correct! A click on the "best response" is highly appreciated. :D

21. Caishaax3

thank you