SOLUTION: If a line passes through (3,-1) and has a slope of -1,how would you write the equation?

Question 1059529: If a line passes through (3,-1) and has a slope of -1,how would you write the equation?
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Use the definition of slope for the unknown point (x,y) and given point (3,-1).

------------this is by the symmetric property for equality, the point-slope form for the equation.
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!
If a line passes through (3,-1) and has a slope of -1,how would you write the equation?

Use the point-slope formula:
y - - 1 = - 1(x - 3) ------ Substituting (3, - 1) for , and - 1 for m
y + 1 = - x + 3 =====> y = - x + 3 - 1 =====>
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