Write the equation of the line that is perpendicular to the line y = 2x + 2 and passes through the point (6, 3).
Perpendicular lines have negative reciprocal slopes.
do you understand what Ruka said ^ ?
Once you find the slope, sub the values of x and y into the equation to find the "equation of a line" to get your answer
>.> uh..
For example: y=mx+b the slope is m. For the perpendicular line, the slope will be -1/m
do you know what perpendicular means?
Plug the values in for y-y1=m(x-X1) once you have your slope.
No.
perpendicular means a line forms a right angle with another line... the angle between them is 90 degrees.
Oh.
so in terms of slope, two lines that are perpendicular to each other have negative reciprocal slopes... for example, what's the slope of y = 2x + 2?
-2?
no. m=2, the slope of y = 2x + 2 is 2
so the negative reciprocal of that is -1/m or -1/2. do you understand?
Kind of.
So much to remember in math.
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