math
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.