1. ## Re: equations of lines

thanks alot, we had 2 classes put together!

so from my original question the first slope =2 so would the second =-1/2?

2. ## Re: equations of lines

Originally Posted by andyboy179
thanks alot, we had 2 classes put together!
so from my original question the first slope =2 so would the second =-1/2?
Geezzzzz YES Andy; WHY are you asking? Get more confidence in yourself...

3. ## Re: equations of lines

Originally Posted by andyboy179
thanks alot, we had 2 classes put together!

so from my original question the first slope =2 so would the second =-1/2?
Yes.

So for the equation of the line you are trying to find, it is of the form y = mx + c, and you have now found m = -1/2, use this and the fact that (x, y) = (0, 0) is a point that lies on the line, to evaluate c.

4. ## Re: equations of lines

thanks, but what would i do next?

5. ## Re: equations of lines

Originally Posted by andyboy179
thanks, but what would i do next?
You have an x value, a y value and an m value. Put them into y = mx + c and solve for c.

6. ## Re: equations of lines

Originally Posted by andyboy179
thanks, but what would i do next?

8. ## Re: equations of lines

I recommand you to read post 18 (of Prove it) again, this post tells everything you have to do.

9. ## Re: equations of lines

so it would be 0=-1/2+c
+1/2 to each side so C=1/2?