
Perpendicular line.
Hey guys, i need help figureing out how to do this. it's the last problem on the page i dont understand how you do that. i have hw on it tonight so i realllly need help! thanks! heres the link to the paper: Image2.jpg picture by dannyboy6188  Photobucket

Re: Algebra help please!
Let the required line be L
Slope of a line perpendicular to it is x/y = 2/5 = 2/5.
We Know that product of slopes of perpendicular lines is 1, So slope of line L is 5/2.
We know L passes through (0,8)
y(8) = 5/2(x0)
Therefore equation of line is 5x + 2y + 16 = 0