SOLUTION: Hi I need help with equation of lines so how do I do
M= -3 b=1 when my formulas are y = mx+b and m=y2-y1
Algebra.Com
Question 1017301: Hi I need help with equation of lines so how do I do
M= -3 b=1 when my formulas are y = mx+b and m=y2-y1
X2-X1
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Your equation looks like:
----------------
Then you have the point-slope formula:
-----------------------------
This formula gives you the slope, ,
when you plug in 2 points on the line:
( x1, y1 ) and
( x2, y2 )
---------------
For the given line, your points could be:
( 0, 1 ) and ( 1, -2 )
See if the formula works:
OK
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