SOLUTION: i need help fast today is my last day to finish this!!!!!! i need linear graphs explained to me like as if im a 3 yaer old learning my numbers because i do not understand it one

Algebra ->  Linear-equations -> SOLUTION: i need help fast today is my last day to finish this!!!!!! i need linear graphs explained to me like as if im a 3 yaer old learning my numbers because i do not understand it one      Log On


   

Question 145842: i need help fast today is my last day to finish this!!!!!!
i need linear graphs explained to me like as if im a 3 yaer old learning my numbers because i do not understand it one bit
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Do you need an explanation on how to graph a linear equation?


Let's say you want to graph the equation y=%281%2F2%29x%2B3




Looking at y=%281%2F2%29x%2B3 we can see that the equation is in slope-intercept form y=mx%2Bb where the slope is m=1%2F2 and the y-intercept is b=3


Since b=3 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 1%2F2, this means:

rise%2Frun=1%2F2


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



So starting at , go up 1 unit


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



Now draw a line through these points to graph y=%281%2F2%29x%2B3

So this is the graph of y=%281%2F2%29x%2B3 through the points and