## awesomeness123 3 years ago Lol this is FOR REAL my last question of today :) sorry guys! Choose the slope-intercept equation of the line that passes through the point shown and is perpendicular to the line shown. y = -3/2x y = 3/2x - 6 y = -2/3x -5/3 y = 2/3x - 13/3

1. awesomeness123

@AriPotta im sorry lol

2. awesomeness123

@Hero promise this is my last today

3. awesomeness123

im still confused bout this

4. awesomeness123

|dw:1351893998329:dw|

5. awesomeness123

so first -5,0 and 0,3 i plug into the y2-y1 thing

6. awesomeness123

then i got 3/5

7. awesomeness123

since its perp i change it to -5/3

8. awesomeness123

then i do the y-y1 formula with the point 2,-3

9. awesomeness123

(btw I need u to check it

10. awesomeness123

then im confused help!

11. JakeV8

is (2,-3) the point that the perpendicular line is supposed to run through? I think you're almost there... you have the perp slope as -5/3, and you know the point, and it sounds like you know the formula... the point slope form of a line is y - y1 = m(x -x1) where (x1, y1) is your point, and m is your slope.

12. awesomeness123

please hurry as i need to go soon

13. awesomeness123

yes

14. awesomeness123

see i did that but i didnt get any of the options

15. JakeV8

so it's y - (-3) = (-5/3)(x-2) y + 3 = -5/3x -10/3 y = -5/3 x -19/3

16. awesomeness123

but is that an option?

17. JakeV8

oh... that's not up there. Hm. Is that the problem? The way you posted this, it didn't show the original line or the point. to run the perp line through.

18. awesomeness123

hold on ill attach a file!

19. awesomeness123

20. JakeV8

The problem is your slope. The actual line looks like it goes through (-5,0), but it doesn't... it's just close. The actual real slope is 2/3. So your perp slope is -3/2 And your equation becomes: y - (-3) = -3/2 (x - 2) y + 3 = -3/2 x + 3 y = -3/2 x

21. awesomeness123

thank you!!! SO MUCH!! muah thxx

22. JakeV8

you would have gotten it correct if you had been able to read that graph better. Your approach seemed fine, but since you read the slope incorrectly, the answers weren't working out to match your choices.

23. awesomeness123

got it!

24. JakeV8