SOLUTION: need to solve x+4y=8 to be graph

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Question 588380: need to solve x+4y=8 to be graph
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
To graph x+4y=8, all we need are two points.

So let's find the x and y intercepts and those will be our two points.

x-intercept


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


x%2B4y=8 Start with the given equation.


x%2B4%280%29=8 Plug in y=0.


x%2B0=8 Multiply 4 and 0 to get 0.


x=8 Simplify.


So the x-intercept is .


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y-intercept


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


x%2B4y=8 Start with the given equation.


0%2B4y=8 Plug in x=0.


4y=8 Simplify.


y=%288%29%2F%284%29 Divide both sides by 4 to isolate y.


y=2 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 x%2B4y=8.


Graph of x%2B4y=8

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