SOLUTION: They want me to graph 2x-5y=-20 I simplified it to y=mx+b and got y=-2/5x+4 I am not sure if that is right can you tell me if that is right and tell me how it would look graphed th

SOLUTION: They want me to graph 2x-5y=-20 I simplified it to y=mx+b and got y=-2/5x+4 I am not sure if that is right can you tell me if that is right and tell me how it would look graphed th

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Question 890376: They want me to graph 2x-5y=-20 I simplified it to y=mx+b and got y=-2/5x+4 I am not sure if that is right can you tell me if that is right and tell me how it would look graphed thanks
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
It should be . Notice it's positive 2/5 and not negative 2/5.

Looking at we can see that the equation is in slope-intercept form where the slope is and the y-intercept is

Since this tells us that the y-intercept is

.Remember the y-intercept is the point where the graph intersects with the y-axis

So we have one point

Now since the slope is comprised of the "rise" over the "run" this means

Also, because the slope is , this means:

which shows us that the rise is 2 and the run is 5. This means that to go from point to point, we can go up 2 and over 5

So starting at

, go up 2 units

and to the right 5 units to get to the next point

Now draw a line through these points to graph

So this is the graph of through the points

and

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