## anonymous one year ago Write the equation of a line with a slope of 3 and a y-intercept of 1. y = x + 3 y = 3x + 1 3x + y = 1 <-- I picked this. Am I right? x + 3y = 1

1. anonymous

@pooja195

2. anonymous

It had a slope of -1 but that is the closest out of them all.

3. pooja195

y=mx+b m=slope b=y-intercept

4. anonymous

Ah! It must be B than

5. anonymous

Then*

6. pooja195

yes :)

7. anonymous

i have one more!

8. anonymous

Should I close this one and tag you in the new one?

9. pooja195

just post it here

10. anonymous

Write the equation of the line that passes through (1, 5) and (–2, 14) in slope-intercept form. y = 3x + 2 y = 3x + 8 y = –3x – 2 y = –3x + 8

11. pooja195

$\LARGE \frac{y_2-y_1}{x_2-x_1}=slope$ find the slope first

12. anonymous

ok, of one of them right?

13. pooja195

Find the slope only first

14. pooja195

@Nnesha can u finish plz gotta go

15. anonymous

y = 3x + 2 has a slope of 3 y = 3x + 8 has a slope of 3

16. anonymous

doing the next two one sec

17. anonymous

y = -3x - 2 has a slope of -3

18. Nnesha

use the formula she gave u plugin the x''s and y's values to find slope (1, 5) and (–2, 14)

19. anonymous

yeah I am. Check the other slopes I already gave out

20. Nnesha

no we need to find slopes we don't know if it's -3 or positive 3 that's why we should use that formula to find out

21. Nnesha

$\LARGE\rm \frac{y_2-y_1}{x_2-x_1}=slope$ $\huge\rm (x_1,y_1)(x_2 ,y_2)$ $\huge\rm (1,5)(-2,14)$ x_1 = first x x_2 2nd x