how can i find the y intercept/y coordinate of a equation?

Question

a1234 · Answer

It depends on what equation you're looking at. If you're looking at y = mx + b, then b is the y-intercept. Set x to zero if you're doing it in an equation in standard form.

anonymous · Answer

im trying 2 fight the why intercept from the two ordered pairs on a graph
how can i do that

a1234 · Answer

First find the slope using y2-y1/x2-x1. Then use point-slope form, which is y - y1 = m(x - x1). After you do that, expand that equation to get it in the form y = mx + b, from which you can see the y-intercept. 

Or, if it is an ordered pair such as (0,4), you know that the y-intercept is 4 because x is 0.

anonymous · Answer

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anonymous · Answer

sorry my computer froze :\

a1234 · Answer

Coincidentally, I told you that if it is a point such as (0,4), the y-intercept is 4.