SOLUTION: In the xy coordinate plane a straight line l contains the points (4,2) and origin. If another straight line m contains (1,2) and is perpendicular to l then the equation of m is Y=

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: In the xy coordinate plane a straight line l contains the points (4,2) and origin. If another straight line m contains (1,2) and is perpendicular to l then the equation of m is Y=      Log On


   

Question 1136531: In the xy coordinate plane a straight line l contains the points (4,2) and origin. If another straight line m contains (1,2) and is perpendicular to l then the equation of m is
Y=-2x
Y=-2x+4
Answer by josgarithmetic(39614) About Me  (Show Source):
You can put this solution on YOUR website!
Line #1 is y=%281%2F2%29x and line #m is, if perpendicular, y=-2x%2Bb. Find b;
b=y%2B2x
b=2%2B2%2A1
b=4


Line #m is y=-2x%2B4.