SOLUTION: Graph the equation by plotting points. y=-5/2x

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Question 342076: Graph the equation by plotting points.
y=-5/2x
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Looking at y=-%285%2F2%29x we can see that the equation is in slope-intercept form y=mx%2Bb where the slope is m=-5%2F2 and the y-intercept is b=0 note: y=-%285%2F2%29x really looks like y=-%285%2F2%29x%2B0


Since b=0 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
slope=rise%2Frun

Also, because the slope is -5%2F2, this means:

rise%2Frun=-5%2F2


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



So starting at , go down 5 units


and to the right 2 units to get to the next point



Now draw a line through these points to graph y=-%285%2F2%29x

So this is the graph of y=-%285%2F2%29x through the points and


If you need more help, email me at jim_thompson5910@hotmail.com

Also, feel free to check out my tutoring website

Jim