SOLUTION: solve the system x+y=1 and y=2x+13 by graphing

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Question 626527: solve the system x+y=1 and y=2x+13 by graphing
Found 2 solutions by jim_thompson5910, ewatrrr:
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
Graph the two equations using a graphing to get



From the graph, we see that the two lines intersect at the point (-4,5)

So the solutions are x = -4 and y = 5

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Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 

Hi,

finding two ordered pairs (x,y) for each line:

x+y=1 ⇒ (0,1) and (1,0) on this line (green)

y=2x+13 ⇒ (0,13) and (-13/2,0) on this line (blue)

plot points and connect with their respective lines

Intersect at (-4,5), the ordered pair that is the solution for this system



 

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