## ewokkman1 3 years ago Which is the slope and y-intercept of the following equation? y = 8x + 1

1. Chlorophyll

Do you know slope y -intercept formula?

2. ewokkman1

no, unfortuanately.

3. Chlorophyll

Please look it up, so you can learn!

4. brinethery

Paul is God. He got me through calculus, so I'm sure he can get you through algebra. Read through this whole section, you'll learn a lot. http://tutorial.math.lamar.edu/Classes/Alg/Lines.aspx

5. Chlorophyll

Brinet comes to rescue you :)

6. brinethery

Chlor, you can still answer, I just wanted to pass on these notes. They are awesome.

7. ewokkman1

thanks ill read these and see if they help

8. Chlorophyll

Just give me any idea about slope!

9. brinethery

@ewokkman1, your y-intercept will be when x=0. Look at any graph and you can understand this visually. So plug x=0 into your equation and see what you get.

10. ewokkman1

so the y-intercept will =9?

11. brinethery

What is 8*0?

12. ewokkman1

0

13. brinethery

y = 8*0 +1

14. ewokkman1

oh...... i think i understand it. So my y-intercept would would equal 1

15. brinethery

Yup! :-)

16. brinethery

And if you ever have it where it's not in y=mx+b form, first step is to always always always get it in that form. No coefficient next to the y. Make sure y is by itself. You'll understand more when you read through those notes, they explain it really well.

17. brinethery

So what is "m" in your case?

18. ewokkman1

8

19. brinethery

Yep. And if you want to graph the line by starting at a given point, you want to move up 8 in the positive direction, and over 1 in the positive direction. They don't really specify this, but it's implied. m= 8/1 = 8. That helps if you don't feel like plugging in another point but just graphing the function. If it's -8, then that mean move down 8 in the negative direction and over 1 in the positive direction.