SOLUTION: Find the equation of the line through (1,-5) and (7,1) write the equation in slope intercept form. 1-(-5)/7-1= 6/6 or 1 as the slope, then y=x+b y-(-5)=x+1 y+5=x+1 y=x-4 is t

Algebra ->  Coordinate-system -> SOLUTION: Find the equation of the line through (1,-5) and (7,1) write the equation in slope intercept form. 1-(-5)/7-1= 6/6 or 1 as the slope, then y=x+b y-(-5)=x+1 y+5=x+1 y=x-4 is t      Log On


   

Question 50494: Find the equation of the line through (1,-5) and (7,1) write the equation in slope intercept form.
1-(-5)/7-1= 6/6 or 1 as the slope, then
y=x+b
y-(-5)=x+1
y+5=x+1
y=x-4
is this correct?
Answer by AnlytcPhil(1810) About Me  (Show Source):
You can put this solution on YOUR website!
Find the equation of the line through (1,-5) and (7,1)
write the equation in slope intercept form.
1-(-5)/7-1= 6/6 or 1 as the slope, then
y=x+b
y-(-5)=x+1
y+5=x+1
y=x-4
is this correct?

You got the slope correct m = 1

But when you substituted in 

  y - y1 = m(x - x1)
y - (-5) = 1(x - 1)
y - (-5) = x - 1     <------ you have x + 1 on the right.

 That's your error.

   y + 5 = x - 1
       y = x - 6

Edwin