SOLUTION: Graph a line that passes through (4, -2) and is perpendicular to a line whose slope is -3.

Algebra ->  Graphs -> SOLUTION: Graph a line that passes through (4, -2) and is perpendicular to a line whose slope is -3.      Log On


   

Question 72150: Graph a line that passes through (4, -2) and is perpendicular to a line whose slope is -3.
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
a line that is perpendicular to a line with a slope of -3 has a slope of 1/3
(the negative reciprical of the other slope.
thus the equation of this line through (4,-2) is:
-2=4/3+b
b=-2-4/3
b=-10/3
thus the equation is
y=x/3-10/3
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+y+=+x%2F3+-10%2F3%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10,
y = x/3 -10/3).