Question 1205657: Consider Line 1 with the equation: x=-13
Give the equation of the line parallel to Line 1 which passes through (-5,-4)
Give the equation of the line perpendicular to Line 1 which passes through (-5,-4)
Consider Line 2, which has the equation: y=x-7
Give the equation of the line parallel to Line 2 which passes through (-8,8)
Give the equation of the line perpendicular to Line 2 which passes through (-8,8)
Answer by Edwin McCravy(20054)   (Show Source):
You can put this solution on YOUR website!
I'll do the first one, and leave the other one for another tutor.
If a line's equation is x = a, it is vertical and goes through (a,0) on the
x-axis.
If a line's equation is y = b, it is horizontal and goes through (0,b) on the
y-axis.
If a vertical line passes through (a,b), its equation is x = a,
If a horizontal line passes through (a,b), its equation is y = b
The given line is in black below. Since the given line's equation is x = -13,
it is vertical and goes through (-13,0) on the x-axis.
The line you want the equation of is the green line, and since it is horizontal
and goes through (-5,-4), its equation is y = -4.
Edwin
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