Hi,

find two points on each line, plot them and connect with corresponding line

y = 2x     x = 0 ⇒ y = 0     x = 1 ⇒ y = 2  

y = -2x + 8  x = 0 ⇒ y = 8     x = 1 ⇒ y = 6  

Lines intersect at P(2,4) which is the solution  for this system of Equations

Note: 2x = -2x + 8,  4x = 8 , x = 2 (substituting for x in either EQ ⇒ y = 4)

 

Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
 Here's what the plots of these 2 

equations look like:



The way you plot each line is to pick

a value for  and then find 

that will give you a point on the line ( x,y )

----------------

For example, say you're plotting



I'll pick  







so, you have the point ( -1, 10 ) on the line

------------------

Just keep doing this with small whole numbers

for each of the lines, and you should end up 

with 2 lines that look like my plots

Hope this helps

 

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