Question 775601
Lines that are perpendicular to one
another have slopes (m) that multiply
to give -1
y = -1/2x + 6
Has a slope (m) of -1/2
So, the line that is perpendicular
to it has a slope of 2
-1/2 * 2 = -1
Using y - b = m(x - a) with (1,-1)
with a = 1, b = -1 and m = 2
y - (-1) = 2(x - 1)
y + 1 = 2x - 2
y = 2x - 2 - 1
y = 2x - 3
Hope this helps.
:-)