Write the equation of the line that is perpendicular to the line y = 2x + 2 and passes through the point (6, 3).

Question

anonymous · Answer

The slope of your line y=2x+2 is of course 2.  A line perpendicular to this will have a slope of -1/2 (the negative reciprocal).  Now you can use the point slope formula with the point (6,3) and slope -1/2 to get your answer:

y-3=-1/2(x-6)

across · Answer

Perpendicularity of two slopes means that one is the negative reciprocal of the other. That is, a slope parallel to $2$ is $-1/2$.

across · Answer

Test1 is spot-on.

anonymous · Answer

Remember the point slope formula says that the equation of a line with slope m through the point (a,b) is 

y-b=m(x-a)

anonymous · Answer

Thank you smart people!