Checking Answers
Write the equation of a line that is perpendicular to the given line and that passes through the given point.
y + 2 = 1/3 (x – 5); (–4, 3)
I got y =–1/3x – 11

Question

Checking Answers
Write the equation of a line that is perpendicular to the given line and that passes through the given point.
y + 2 = 1/3 (x – 5); (–4, 3)
I got y =–1/3x – 11

phi · Answer

I think if you know the slope of a line is m, then the slope of a line perpendicular to it is -1/m

(flip and then minus it)

The slope of the 1st line is 1/3.   you negated it to get -1/3  but you still have to flip it.