SOLUTION: What is the y-intercept of the line with the equation 4x + 9y = -108?

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Question 293276: What is the y-intercept of the line with the equation 4x + 9y = -108?
Found 2 solutions by stanbon, jim_thompson5910:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
What is the y-intercept of the line
with the equation 4x + 9y = -108?
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Let x = 0; then solve for "y":
9y = -108
y = -12
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Cheers,
Stan H.

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

4x%2B9y=-108 Start with the given equation.


9y=-108-4x Subtract 4x from both sides.


9y=-4x-108 Rearrange the terms.


y=%28-4x-108%29%2F%289%29 Divide both sides by 9 to isolate y.


y=%28%28-4%29%2F%289%29%29x%2B%28-108%29%2F%289%29 Break up the fraction.


y=-%284%2F9%29x-12 Reduce.


So the equation y=-%284%2F9%29x-12 is now in slope intercept form y=mx%2Bb where the slope is m=-4%2F9 and the y-intercept is b=-12 note: the y-intercept is the point