
Yintercept form
AAAAAA!!!!! I havnt done homework in a long time, and i just got sent home a takehome test on yintercept form. An explanation would be nice, as well as answering this purely example question:
y = 2x + 4
just convert it into yintercept, i learn by example.

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It's been a while since I've done algebra, but that's in yintercept form, isn't it (also called slopeintercept)??
$\displaystyle y=mx+b$, where $\displaystyle m$ is your slope, and $\displaystyle b$ is the yintercept (that is, where the line crosses the yaxis).
So in your equation, the slope is $\displaystyle 2$ (or $\displaystyle \frac{2}{1}$, same thing, just remember $\displaystyle \frac{rise}{run}$) and the yintercept is $\displaystyle 4$.
Also, I attached a graph with my notes in red. Does this help at all, or did I not understand your question?