how do you get x+y=5 into y=mx+b format?
this is geometry.i have to graph x+y=5 but i have to convert it into y=mx+b format first.
Top 7 Answers
Favorite Answer
First, you need to get the y by itself, so subtract x from both sides
x+y=5
y=5-x
Then, rearrange to the correct format:
y=-1x+5
This will have a negative slope on a graph
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Think back to Algebra and solve the equation for y. Viola!
For a little more detail…
Subtract x from both sides of the equation:
x + y = 5
x+y-x= 5-x
y = -x + 5
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X + Y = 5
subtract x from the left
Y = -1X + 5
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y=5-x
you just move the numbers around like you would in a algebra problem
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y=(negative)x+5
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x+y=5
-x -x
y=5-x
**Rearrange**
y=-x+5
Final Answer
y=-x+5
AIM me airjordan255
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y=5x+b
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