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## gjhfdfg 2 years ago Use the given conditions to write an equation for the line in point-slope form.

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1. gjhfdfg

Passing through, |dw:1361127311451:dw|

2. gjhfdfg

How would I do this?

3. zenai

\[y-y _{1} = m(x -x_{1})\] This is point slope form.

4. zenai

find your slope (m) and plug in an x and y value to find your equation.

5. gjhfdfg

How would I find it?

6. gjhfdfg

Its - (1/3)

7. gjhfdfg

So, -7 - (-6) = - 1/3 ( -5 - (-8)) ?

8. gjhfdfg

Im lost.

9. gjhfdfg

Where did the 26 come from?

10. zenai

point slope form means you don't solve for y, and gjhfdfg in point slope form you only plug in a single point, which is one X value and one Y value. so - \[(y + 7) = -1/3*(x+5)\] for the point (-5, -7)

11. zenai

another right answer would be \[(y+6) = -1/3*(x+8) \] for the point (-6, -8) it doesn't matter what point you use, just that you use one. Hope this helps.

12. zenai

the last one is for the point (-8, -6) but yeah sorry.

13. gjhfdfg

Alrighty, I got it thanks for explaining

14. zenai

no problem

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