Question 217868
FORTUNATELY WE HAVW AVAILABLE THE FORMULA LISTED BELOW TO GRAPH LINEAR EQUATIONS.
YOU CAN GRAPH THEM BY MAKING UP A 2 COLUMN CHART FOR THE X & Y VALUES  THAT SATISFY THE EQUATION, PLOT THEM & THEN DRAW THE LINE. 
(Y)=4X+1
{{{ graph( 300, 200, -6, 5, -10, 10, 4x +1) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 4x +1).
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X---Y
1---5
3---13
-2-(-7)