SOLUTION: I am confused on how to solve this, the directions say "Sketch the graph of each line." Each problem had an equation like y=-4x/5 or y=3/2x-1 with a graph below it. What do I do?

Question 916079: I am confused on how to solve this, the directions say "Sketch the graph of each line." Each problem had an equation like y=-4x/5 or y=3/2x-1 with a graph below it. What do I do?
I looked in my notes and I think I have to do sort of inverse operations and substitute numbers for y=mx=b but I'm not sure.
Could you just work through one of the above example problems and help? Also what do I do about fractions?
Thank you!!
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
I'll show you how to graph something like

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 3 and the run is 2. This means that to go from point to point, we can go up 3 and over 2

So starting at

, go up 3 units

and to the right 2 units 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

Let me know if you need more help or if you need me to explain a step in more detail.
Feel free to email me at jim_thompson5910@hotmail.com
or you can visit my website here: http://www.freewebs.com/jimthompson5910/home.html

Thanks,

Jim
RELATED QUESTIONS
The directions on my paper say to solve each system By graphing. Show your graphs and... (answered by MathLover1)

Hi. What does it mean when the directions say, ''Identify the slope and y-intercept of... (answered by Edwin McCravy)

The directions for this say to solve the equation by "suitable methods"....I am confused. (answered by longjonsilver)

I am truly lost...the directions read, write an equation in slope-intercept form of the... (answered by stanbon)

The directions say to graph each equation using x- and y- intercepts. The problem is... (answered by rfer)

The directions say: Solve the equation. The problem is 21z^2+85Z-26=0. I am stuck on... (answered by stanbon)

I'm a little bit confused as to what I am really doing. A few classmates had said to use... (answered by KMST)

Here's my question: Sketch the graph of each function or relation and state the domain (answered by jsmallt9)

Taking an on-line class and cannot find any examples of this in my book and I am at a... (answered by drk)