SOLUTION: Find the y-intercept -x + 3y =15 please help

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Question 122166: Find the y-intercept -x + 3y =15
please help
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
-1%2Ax%2B3%2Ay=15 Start with the given equation

Now let's find the y-intercept

To find the y-intercept, let x=0 and solve for y:
-1%2A%280%29%2B3%2Ay=15 Plug in x=0

3%2Ay=15 Simplify

x=15%2F3 Divide both sides by 3



y=5 Reduce



So the y-intercept is (note: the y-intercept will always have a x-coordinate equal to zero)