SOLUTION: A line passes through (1,-5) and (-3,7). Write an equation for the line in point-slope form. Rewrite the equation in slope-intercept from.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A line passes through (1,-5) and (-3,7). Write an equation for the line in point-slope form. Rewrite the equation in slope-intercept from.      Log On


   

Question 1080289: A line passes through (1,-5) and (-3,7). Write an equation for the line in point-slope form. Rewrite the equation in slope-intercept from.
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
slope, %287-%28-5%29%29%2F%28-3-1%29=12%2F%28-4%29=-3

Pick either point, here choosing (1,-5), and put into point-slope equation form:
y-%28-5%29=-3%28x-1%29
highlight%28y%2B5=-3%28x-1%29%29


Simple algebra to put into slope-intercept form:
cross%28y%2B5=-3x%2B1%29
y%2B5=-3x%2B3
highlight%28y=-3x-2%29
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Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

A line passes through (1,-5) and (-3,7). Write an equation for the line in point-slope form. Rewrite the equation in slope-intercept from.
Word of advice: The equation you want is NOT y = - 3x - 4

Try working it out yourself and you stand a better chance of getting an answer that makes sense.