answersLogoWhite

0


Best Answer

Using algebra to determine if two lines are perpendicular to one another we first must determine each line's slope. Select two known points on each line to determine the slope for the line. The Point-slope form of a linear equation is (Y1-Y2) = m(X1-X2). Therefore The slope m = (Y1-Y2)/(X1-X2) We will use these points to generate the slope equation. Line A Line B Point 1 Point 2 Point 1 Point 2 X1,Y1 X2,Y2 A1,B1 A2,B2 If the product of the slopes of two lines = -1 then the two lines are perpendicular. Using the point slope form above the equation would look like this: [(Y1-Y2)/(X1-X2)] X [(A1-A2)/(B1-B2)] = m(line A) X m(line B) Example Line A Line B Point 1 Point 2 Point 1 Point 2 0,0 3,3 3,-3 0,0 Using the above formula [(0-3)/(0-3)] X [(3-0)/(-3-0)] = [-3/-3] X [3/-3] = 1 x -1 = -1 These two lines are perpendicular.

User Avatar

Wiki User

15y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How can you use algebra for perpendicular lines?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is the difference between perpendicular and intersecting lines?

perpendicular crosses at a right angle, while intersecting lines don't


How do you use the word perpendicular lines in a sentence?

Perpendicular lines may form a "tee" or a "cross"


How do you use the word perpendicular in a sentnce?

The hexagon haded 6 perpendicular lines.


How do you use slope to determine a potato?

If two lines are perpendicular to eachother, they have right angles. The format for perpendicular lines is: x is perpendicular to -1/x. This is called the opposite reciprocal.


Does perpendicular have parallel lines?

= parallel + perpendicular As such no, perpendicular lines do not naturally have parallel lines. However...connect the lines in the symbols below. ++ ++ And you'll have 4 perpendicular lines, and 4 parallel lines.


Does an equilateral have parallel lines or perpendicular lines?

PERPENDICULAR


Which pair of lines is perpendicular?

Lines that intersect at 90 degrees are perpendicular lines


Which shape has parallel lines but no perpendicular lines?

A rhombus has parallel lines but no perpendicular lines.


Can two lines be parellel perpendicular and intersecting at the same time?

No. If the lines are parallel they will never meet or intersect at any point. If the lines are perpendicular they do intersect, but perpendicular lines are a special case of intersecting lines. Perpendicular lines are exactly 90 degrees from each other. Intersecting lines do not haveto be perpendicular... but perpendicular lines are always intersecting.


What is the different of a perpendicular lines and intersecting lines?

The only difference between perpendicular lines and intersecting lines is that perpendicular lines create a right angle at the point of intersection.


Lines that form right angles at the point of intersection are what?

When two lines intersect at a right angle, they are "perpendicular"


ARE Acute angles are formed by perpendicular lines?

No. Perpendicular lines for right angles. That is why they are called perpendicular.