SOLUTION: Need help finding the x-intercept and y-intercept of the graph of the following equation. -3x + y = 12

Algebra ->  Linear-equations -> SOLUTION: Need help finding the x-intercept and y-intercept of the graph of the following equation. -3x + y = 12       Log On


   

Question 202119: Need help finding the x-intercept and y-intercept of the graph of the following equation.
-3x + y = 12
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

x-intercept


To find the x-intercept, plug in y=0 and solve for x


-3x+%2B+y+=+12 Start with the given equation.


-3x+%2B+0+=+12 Plug in y=0.


-3x=+12 Simplify.


x=%2812%29%2F%28-3%29 Divide both sides by -3 to isolate x.


x=-4 Reduce.


So the x-intercept is .


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y-intercept


To find the y-intercept, plug in x=0 and solve for y


-3x+%2B+y+=+12 Start with the given equation.


-3%280%29+%2B+y+=+12 Plug in x=0.


-0+%2B+y+=+12 Multiply -3 and 0 to get 0.


+y+=+12 Simplify.


So the y-intercept is .