I need help with graphing equations. I have no idea how to do it and it's becoming a big deal for me in math because each unit we have to use it. Help?
How do you graph equations like
y=2x+11 or y=2x-4

Question

I need help with graphing equations. I have no idea how to do it and it's becoming a big deal for me in math because each unit we have to use it. Help?
How do you graph equations like
y=2x+11 or y=2x-4

anonymous · Answer

when you get things like 2x,4x... stuff like that you automatically have a point on the graph so for you you'd put your first point on 2x...

anonymous · Answer

to find more points on the graph input maybe 2 into the equation 2(2)+11=y and theres your y to the equation

anonymous · Answer

sorry i don't really know how to explain it

anonymous · Answer

when graphing, you use the formula y=mx+b. the m is your slope and the m is your y intercept. 
first, you take the b and that is how many units you go up or down from the origin (0.0) so if it is y= 2x+11 you go 11 units up on the axis. note it is positive so you go UP. if it were -11, you would go down. so when you get the 11th unit up, you make your first point on (0,11).
Next, you use the slope. the slope is the 2. you take the slope and put it in a fraction if it is not already. so, you should have 2/1 as your slope. 
in your case, you would go up 2 units STARTING AT (0,11) and then go right 1 unit and make your second point on the graph. and from your second point you would do the same thing over and over until you have enough points. if you have a negative 2 (aka -2x), you would go DOWN 2 and LEFT 1unit and make your point. 
when dealing with slope, you think of it as rise/run, which is a fraction. the 2 represents the rise and the 1 represents the run.