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September 17, 2014

September 17, 2014

Posted by **Elisa** on Saturday, September 26, 2009 at 6:35am.

I have -11/10x plus b

then -11 (1) is -11

10(1) is 10

Then -5 plus 11/10

I change -5 to -15/10 but I'm getting -26/10.

What am I doing wrong?

- fraction help algebra -
**MathMate**, Saturday, September 26, 2009 at 7:13pmGiven P1(-9, 6) and P2(1, -5)

If the line is not vertical, the line through the two points has a slope of

m=(y2-y1)/(x2-x1)

=(-5-6)/(1-(-9)

=-11/10

This should eliminate some of the choices.

To find the intercept, you can use

(y-y1)=m(x-x1)

y=-(11/10)(x-(-9)+6

=-(11/10)x - 39/10

confirming one of your two options.

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