Algebra 1 Help: How do I find the slope of a line? (Will provide images if needed)

Question

anonymous · Answer

its rise over run

anonymous · Answer

rise/run 

or 

m=(y1-y2)/(x1-x2)

or the m in this equation:

y=mx+b

depending on the information provided

marissalovescats · Answer

Like @girlnotonfire  said,

So you can count the rise over run in your equation of you can pick any 2 set of points and perform the slope equation

anonymous · Answer

rise over run
rise=the height you go on the y axis
run= the distance you go on the x axis

anonymous · Answer

So if had to find the slope of a line with #11, which equation would I use?

anonymous · Answer

rise over run look at the y int. and count how many it goes down and over

marissalovescats · Answer

You also have two points there so you could also perform the slope formula (but counting rise over run is quicker) you start at the bottom point, count up 4 (then you are on the same line as the other point) and you count over left 2 (now you are on the same place as the other point)

With rise over run if you are moving up or to the right, it is positive, but going down or left is negative. 

So we went up 4, and left 2 so that gives us a slope of

4/-2  which simplifies to -2. 

Make sense? :)

anonymous · Answer

so for #11 the slope would be -2?

anonymous · Answer

oops I saw that you posted that after I finished typing and thank you for explaining it

marissalovescats · Answer

You're very welcome!

anonymous · Answer

Okay I got it now! Thank you all for your help, I understand how to do it now, and with the equation it makes it a lot easier on me.