SOLUTION: (2,-1),m=-2/3 I can get most of the problem but get lost when with the end

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Question 328045: (2,-1),m=-2/3
I can get most of the problem but get lost when with the end
Found 2 solutions by solver91311, josmiceli:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


First, write out the whole problem, as in "Find an equation of a line that passes through ..."

Then write out what you have done so far.

THEN we can help you.


John

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The formula is:
%28y+-+y%5B1%5D%29%2F%28x+-+x%5B1%5D%29+=+m
where( x[1],y[1]) = (2,-1)
plugging in numbers:
%28y+-+%28-1%29%29%2F%28x+-+2%29+=+-2%2F3
Multiply both sides by 3%2A%28x+-+2%29
3%2A%28y+%2B+1%29+=+-2%2A%28x+-+2%29
3y+%2B+3+=+-2x+%2B+4
3y+=+-2x+%2B+1
y+=+%28-2%2F3%29%2Ax+%2B+1%2F3
Here's the plot:
+graph%28+500%2C+500%2C+-5%2C+5%2C+-5%2C+5%2C+%28-2%2F3%29%2Ax+%2B+1%2F3%29+