Write (-8,2) and (4,1) in slope intercept form

Question

Put in slope intercept form

Answer 1

slope = m = (y2-y1)/(x2-x1) 

                 = ( 2-1 )/(-8-4) = 1/-12 =-1/12

 

slope intercept form

y= mx+b

1=(-1/12)4 +b

1 =-1/3 +b

b=1+ 1/3

b=4/3

 

y =(-1/12)x +4/3

Answer 2

General slope intercept form is : y = Ax + B. Having two points (x1=-8, y1=2) and (x2=4, y2=2) the following system of equation provides the solution to the problem:

2= -8A + B
1 = 4A + B

Solving for A and B

B= 4/3
A=-1/12

Finally:

y = (-1/12)x + 4/3