Answer:
Step-by-step explanation:
Lines are considered to be perpendicular if the angle between at the point they intersect is 90°, or a right angle.
If you have the equations of two lines, you can determine if they are perpendicular by looking at their slope. For the slope-intercept form of a line,
[tex]y = mx + b[/tex]
[tex]m[/tex] is the slope of the line.
Two lines are considered perpendicular, if the slope of one line is [tex]m[/tex], and the slope of the other line is [tex]\frac{1}{-m}[/tex].
For example, if a line had a slope of 4, say [tex]y = 4x + 2[/tex], then a line that would be perpendicular to this line would have a slope of [tex]\frac{-1}{4}[/tex], say [tex]y = \frac{-1}{4} + 7[/tex].
