Write an equation for the line that passes through (0,7) and is perpendicular to the line whose equation is y=1/2x-1.
Math - drwls, Monday, February 25, 2008 at 4:17pm
The slope of the line you want is -2.
(y-7) = -2(x-0)
y = -2x + 7
Math? - Jon, Monday, February 25, 2008 at 4:20pm
Where did you get negative 2??
Math - drwls, Monday, February 25, 2008 at 4:25pm
The product of the slopes of two perpendicular lines has to be -1. That should be in your textbook or class notes somewhere.
(1/2) * -2 = -1