i dont not undrstand SLOPE
Memorize slope is rise over run.
you need help with a question? The formula is \[\frac{ y _{2}-y _{1} }{ x _{2}-x _{1} }\]
Just think of the slope as the slant-ness of the line.
Then, when you're comfortable with that fact, look at the slope as the "rate of change" of \(y\)... or\[\dfrac{\mbox{change in y}}{\mbox{change in x}}\]
For example, if you have two points \((1,2)\) and \((3,4)\) and a line connecting them, then the slope is \(\dfrac{\mbox{change in y}}{\mbox{change in x}}\). What is the change in \(y\)? Remember that you express points as \((x,y)\). \(y\) has changed from \(2\) to \(4\)... and the change is their difference, i.e., \(4 - 2 = 2\). Can you do it for \(x\)?
@skullpatrol is right again! The change in \(y\) is known as "rise" and the change in \(x\) is known as "run"
You may also know them as "vertical change" and "horizontal change" respectively.
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