How do you find slope intercept?

Question

anonymous · Answer

Solve for y. Then you'll have $y = mx + b$
M is the slope, B is the y-intercept.

addonexus · Answer

lets use (5,3)(2,1)
First you do (y2-y1)/(x2-x1):
so, you subtract 1 (y2) from 3 (y1) which equals -2
then, you subtract 2(x2) from 5 (x1) which equal -3 and two negatives make a positive so the slope is 2/3
To get b (y-int) plug in either ordered pair substitute the y and x. (y=mx+b)
so the equation would be 5=2/3(3) 
5=2 - subtract 2 which makes three - the y-int or b
so the slope-intercept is y=2/3x+3

anonymous · Answer

If you know how to solve systems of linear equations sometimes it's more convenient to do it that way.

Using the previous example, the system would be $$3 = 5m + b$$$$1 = 2m + b$$Since b is always going to be by itself you can just subtract them and get $3m = 2$ right away.