Homework Help: Math

Posted by Sarah on Sunday, May 2, 2010 at 4:23pm.

Can someone assist me in the right direction with this question?

Find an equation of the line containing the given pair of points. (-5,-6) (1,-3)
The equation needs to be in slope intercept form.

Thanks.

Math - lauren, Sunday, May 2, 2010 at 4:58pm
m=y2-y1/x2-x1
=(-3)-(-6)/1-(-5)
=3/6
=1/2

y=mx+b
y=1/2x+b

now use either of the points to solve for b

-3=1/2(1)+b
-3-1/2=b
2.5=b

so

y=0.5x+2.5
Math - Reiny, Sunday, May 2, 2010 at 5:32pm
-3 - 1/2 = -7/2 not 2.5

so y = (1/2)x - 7/2

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