SOLUTION: Find and equation of the line containing the given pair of points (-7,-2)and (-1,-3) The equation of the line in slope-intercept form is y=? Simplify your answer. Can anyone pl

Algebra ->  Linear-equations -> SOLUTION: Find and equation of the line containing the given pair of points (-7,-2)and (-1,-3) The equation of the line in slope-intercept form is y=? Simplify your answer. Can anyone pl      Log On


   

Question 243341: Find and equation of the line containing the given pair of points
(-7,-2)and (-1,-3)
The equation of the line in slope-intercept form is y=?
Simplify your answer.
Can anyone please help me I'm going crazy trying to find the answer. Thanks
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
The line formula is:
Y=mX+b where m=slope & b=the Y intercept.
(-7,-2)and (-1,-3)
Slope=(y2-y1)/(x2-x1)=(-3+2)/(-1+7)=-1/6 for the slope.
Now replace X & Y in the line formula & solve for b the Y intercept.
-2=-1/6*-7+b
-2=7/6+b
b=-2-7/6
b=-12/6-7/6
b=-19/6 this is the Y intercept.
y=-x/6-19/6
+graph%28+300%2C+200%2C+-8%2C+5%2C+-10%2C+10%2C+-x%2F6+-19%2F6%29+ (graph 300x200 pixels, x from -8 to 5, y from -10 to 10, -x/6 -19/6).