If two non-vertical lines that room in the same airplane has the exact same slope, climate they are stated to it is in parallel. Two parallel currently won"t ever before intersect.

You are watching: What is the difference between perpendicular and parallel lines

If two non-vertical currently in the same aircraft intersect at a appropriate angle then they are said to it is in perpendicular. Horizontal and also vertical lines are perpendicular come each other i.e. The axes the the name: coordinates plane.

**Example**

Compare the steep of the perpendicular lines

The slope of the red line:

$$m_1=frac-3-22-left ( -3 ight )=frac-55=-1$$

The slope of the blue line

$$m_2=frac2-left ( -2 ight )3-left ( -1 ight )=frac44=1$$

The slopes of 2 perpendicular present are an unfavorable reciprocals.

See more: How Far Does Ground Rod Need To Be From Panel ? How Far Can A Ground Rod Be From Panel

The product the the slopes of two perpendicular currently is -1 since

$$mcdot -frac1m=-1,: : where: : m_1=m: : and: : m_2=-frac1m$$

**Video lesson**

Are these two line parallel?

**More great on this subject**

Algebra 1Formulating direct equations: Writing linear equations using the slope-intercept formAlgebra 1Formulating linear equations: Writing straight equations making use of the point-slope form and the traditional form

## Next Chapter:

FORMULATING direct EQUATIONS – Scatter plots and also linear models

Search

Math Playground

All courses

Pre-Algebra

All courses

Algebra 1

All courses

Discovering expressions, equations and also functions

Discovering expressions, equations and also functions

Exploring actual numbers

Exploring actual numbers

How come solve straight equations

How to solve direct equations

Visualizing linear functions

Visualizing straight functions

Formulating linear equations

Formulating straight equations

Linear inequalitites

Linear inequalitites

Systems of linear equations and inequalities

Systems of linear equations and also inequalities

Exponents and exponential functions

Exponents and also exponential functions

Factoring and polynomials

Factoring and also polynomials

Quadratic equations

Quadratic equations

Radical expressions

Radical expressions

Rational expressions

Rational expressions

Algebra 2

All courses

Geometry

All courses

SAT

All courses

ACT

All courses

lifwynnfoundation.org is licensed by Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationell-licens.