SOLUTION: what is the answer to (-1,2),(1,-2) this problem on graphing equations in slope-intercept form

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Question 332885: what is the answer to (-1,2),(1,-2) this problem on graphing equations in slope-intercept form
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(-1,2),(1,-2)
Y=mX+b is the line equation where m=slope & b=the Y intercept.
m=(Y2-Y1)/(X2-X1)=(-2-2)/(1+1)=-4/2=-2 ans. for the slope.
2=-2*-1+b
2=2+b
b=2-2
b=0 Y=-2x ans. for the line equation.
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+y+=+-2x%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = -2x).