SOLUTION: how do you graph y=2x+4

Question 405704: how do you graph y=2x+4
Found 2 solutions by jim_thompson5910, Alan3354:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

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 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

So this is the graph of through the points and

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

Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you

Jim
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Do it like this one:
-------------------
They're straight lines so you need 2 points.
y = -3x-4
Pick 2 values of x and find y
@x = 0, y = -4
@x = 2, y = -10
Plot the 2 points, draw a line thru them.
RELATED QUESTIONS
how do you graph... (answered by Alan3354)
how do you graph 4-2x=0 (answered by lynnlo)
how do you graph... (answered by Alan3354)
How do you graph... (answered by rfer)
How do you graph... (answered by Alan3354)
How do you graph... (answered by Theo)
How do you graph... (answered by Alan3354)
How do you graph y =... (answered by stanbon)
how do you graph y=x-4 (answered by josgarithmetic,greenestamps)