SOLUTION: Determine the equation of the line by using the point-slope form. Put the final answer in y = mx + b form. Points: (−1, 3) and (1, −1)

Algebra ->  Linear-equations -> SOLUTION: Determine the equation of the line by using the point-slope form. Put the final answer in y = mx + b form. Points: (−1, 3) and (1, −1)       Log On


   

Question 1136252: Determine the equation of the line by using the point-slope form. Put the final answer in y = mx + b form.
Points: (−1, 3) and (1, −1)
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+%28+y+-%28-1%29+%29+%2F+%28+x+-+1+%29+=+%28+3+-%28-1%29+%29+%2F+%28+-1+-+1+%29+
+%28+y+%2B+1+%29+%2F+%28+x+-+1+%29+=+4+%2F+%28+-2+%29+
+%28+y+%2B+1+%29+%2F+%28+x+-+1+%29+=+-2+
+y+%2B+1++=+-2%2A%28+x+-+1+%29+
+y+%2B+1+=+-2x+%2B+2+
+y+=+-2x+%2B+1+
-------------------------
check:
( -1, 3 )
+3+=+-2%2A%28-1%29+%2B+1+
+3+=+2+%2B+1+
+3=3+
---------------
( 1, -1 )
+-1+=+-2%2A1+%2B+1+
+-1+=+-2+%2B+1+
+-1+=+-1+
OK