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How do you graph 5x+2y=-8

 Feb 23, 2016
 #1
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5x+2y= -8

 

Here's one method :

 

Let x = 0   ...so we have

 

5(0) + 2y = -8

 

0 + 2y = -8

 

2y = -8     divide both sides by 2

 

y = -4        so....we have the point (0, -4) on the graph

 

Next...let y = 0   and we have

 

5x + 2(0)  = -8

 

5x  = -8    divide both sides by -5

 

x = -8/5      so......the point  (-8/5, 0)  is also on the graph

 

Plot the two points  and draw a line through them......that's your graph....!!!

 

 

cool cool cool

 Feb 23, 2016

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