posted by jojo on .
Please help me solve this problem... thanks!
1.Find the equation of the line that cntains the pont (5, -1) and has slope -1/2
2.find the equation of the line that passes through the points (-2,1) and (1,-5)
Easiest way, since you don't specify which form you want your equation in.
(based on the fact that for Ax + By = C 0, the slope is -A/B)
1. Slope = -1/2
so the equation is x + 2y = C
plug in point, 5 - 2 = C
C = 3
so ..... x + 2y = 3
from there you can change it to any form they ask for.
try the second one the same way.