SOLUTION: what is the y-intercept of 3x+y=7

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Question 70753: what is the y-intercept of 3x+y=7
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
In the general equation of the line y=mx+b the constant b is the y intercept. So all you need to do is solve for y and find the value which will satisfy this equation.
cross%283x-3x%29%2By=7-3x Subtract 3x from both sides
y=7-3x
y=-3x%2B7could be written as this as well
In this case b=7 so the y-intercept is (0,7)