SOLUTION: Please help me solve this equation: Solve by finding the in slope-intercept form and standard form: Through (2,-5) and (1,4)

Algebra ->  Linear-equations -> SOLUTION: Please help me solve this equation: Solve by finding the in slope-intercept form and standard form: Through (2,-5) and (1,4)      Log On


   



Question 250208: Please help me solve this equation: Solve by finding the in slope-intercept form and standard form:
Through (2,-5) and (1,4)

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(2,-5) and (1,4)
Y=mX+b
m=SLOPE=(Y2-Y10/X2-X1)=(4+5)/(1-2)=9/-1=-9 ANS. FOR THE SLOPE
USE ONE SET OF X,Y VALUES & SOLVE FOR b
-5=-9*2+b
-5=-18+b
b=-5+18
b=13 ans. for the Y intercept.
Y=-9X+13
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+15%2C+-9x+%2B13%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 15, -9x +13).