SOLUTION: What is the equation of the line, in point-slope form, that passes through the points (4, 8) and (2, -2)?

Algebra ->  Linear-equations -> SOLUTION: What is the equation of the line, in point-slope form, that passes through the points (4, 8) and (2, -2)?      Log On


   

Question 276174: What is the equation of the line, in point-slope form, that passes through the points (4, 8) and (2, -2)?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(4, 8) and (2, -2)
Y=mX+b WHERE m=SLOPE & b=THE Y INTERCEPT.
m=(Y2-Y1)/(X2-X1)=(-2-8)/(2-4)=-10/-2=5 is the slope.
8=5*4+b
8=20+b
b=8-20
b=-12 the Y intercept.
Y=5X-12 is the line equation.
+graph%28+300%2C+200%2C+-6%2C+5%2C+-15%2C+10%2C+5x+-12%29+ (graph 300x200 pixels, x from -6 to 5, y from -15 to 10, 5x -12).