SOLUTION: Find y if the line through the points (12, 14) and (3, y) has a slope of 4/3.

Algebra ->  Linear-equations -> SOLUTION: Find y if the line through the points (12, 14) and (3, y) has a slope of 4/3.      Log On


   

Question 556990: Find y if the line through the points (12, 14) and (3, y) has a slope of 4/3.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Use point-slope formula
+%28+14+-+y+%29+%2F+%28+12+-+3+%29+=+4%2F3+
+3%2A%28+14+-+y+%29+=+4%2A9+
+42+-+3y+=+36+
+3y+=+42+-+36+
+3y+=+6+
+y+=+2+ answer
check:
+%28+14+-+y+%29+%2F+%28+12+-+3+%29+=+4%2F3+
+%28+14+-+2+%29+%2F+%28+12+-+3+%29+=+4%2F3+
+12+%2F+9+=+4%2F3+
+12+=+12+
OK