SOLUTION: Resolution (*) y= 2x-1 Attribute at least two values of x an get y values in oder to get two or more points to draw grah. example: for x=0; y=2*0-1 then y=-1 and we get the fir

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Question 235857: Resolution
(*) y= 2x-1
Attribute at least two values of x an get y values in oder to get two or more points to draw grah.
example:
for x=0; y=2*0-1 then y=-1 and we get the first point A(0,-1)
for x=1; y=2*1-1 then y=1 and we get the second point B(1,1)
We must materialize A and B then join A and B. that's all.
for the second equation y= -3x +9 do the same thing: attribuate any values of x(at least two values) in oder to get y.

Found 2 solutions by checkley77, cheikoda:
Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website!
y = 2x � 1 (red line)
y = -3x + 9 (green line)
(graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions 2x -1 and -3x +9).
y = 2x � 1
y = -3x + 9 subtract these 2 equations.
---------------------
0=5x-10
5x=10
x=10/5
x=2 ans.
y=2*2-1
y=4-1
y=3 ans.
Intersect=(2,3)

Answer by cheikoda(2) (Show Source):
You can put this solution on YOUR website!