SOLUTION: -4x-5y=30 then graph

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Question 588571: -4x-5y=30 then graph
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
I'm assuming you want to find the x and y intercepts so you can graph.

x-intercept


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


-4x-5y=30 Start with the given equation.


-4x-5%280%29=30 Plug in y=0.


-4x-0=30 Multiply -5 and 0 to get 0.


-4x=30 Simplify.


x=%2830%29%2F%28-4%29 Divide both sides by -4 to isolate x.


x=-15%2F2 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


-4x-5y=30 Start with the given equation.


-4%280%29-5y=30 Plug in x=0.


-0-5y=30 Multiply -4 and 0 to get 0.


-5y=30 Simplify.


y=%2830%29%2F%28-5%29 Divide both sides by -5 to isolate y.


y=-6 Reduce.


So the y-intercept is .


Now let's plot the points and which are the x and y intercepts respectively.





Now draw a straight line through the plotted points to graph -4x-5y=30.


Graph of -4x-5y=30

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