SOLUTION: My teacher wants us to plott each problem at least 5 times. I don't understand how to plott. can you show me how to plot for this problem? y=2x+4 Thank you.

Algebra ->  Linear-equations -> SOLUTION: My teacher wants us to plott each problem at least 5 times. I don't understand how to plott. can you show me how to plot for this problem? y=2x+4 Thank you.      Log On


   

Question 475687: My teacher wants us to plott each problem at least 5 times. I don't understand how to plott. can you show me how to plot for this problem? y=2x+4
Thank you.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Looking at y=2x%2B4 we can see that the equation is in slope-intercept form y=mx%2Bb where the slope is m=2 and the y-intercept is b=4


Since b=4 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 2, this means:

rise%2Frun=2%2F1


which shows us that the rise is 2 and the run is 1. This means that to go from point to point, we can go up 2 and over 1



So starting at , go up 2 units


and to the right 1 unit to get to the next point



Now draw a line through these points to graph y=2x%2B4

So this is the graph of y=2x%2B4 through the points and