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Oxana [17]
3 years ago
10

1x+1y=5 graph and y-intercept form

Mathematics
1 answer:
Stels [109]3 years ago
7 0
If x+y=5, let y = 0 to find the x-intercept:  x=5.  The x-int. is at (5,0).
               Let x = 0 to find the y-int:  y=5.  The y-int is (0,5).

Plot (5,0) and (0,5), and then draw a straight line thru both points.

If x+y=5,  solving for y results in    y = -1x + 5
Comparing this to y = mx + b,      m=-1 and b= 5.  Again, the y-int. is (0,5).
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