A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
How can you determine if two lines are perpendicular?
anonymous
 4 years ago
How can you determine if two lines are perpendicular?

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0There gradients will multiply to give negative one (1). :)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0if lines are perpendicular their dot product will be 0 zero

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0For example. If you have a line given by y = 10x+3 and also y=1/10x+5 Where the gradient is marked by the number before the x. The two numbers multiply to give negative one. Make sense?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Their ratio will be the same. Ex: 10x + 5 and 20x+10. to get from 10x+5 to 20x+10, you multiply the first one by 2

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0If the product of the two gradients is 1 they are perpendicular.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0*you must solve for the dot product. if you want it to be parallel, ratio must be the same

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0You all need to remember your algebra 2. At this stage it's just a matter of comparing slopes. If the two slopes are perpendicular they will multiply to make 1. Or you can find one given the other by the fact that they will be negative reciprocals of each other. If you are given a slope of 10 as in the example above, a perpendicular slope will be 1/10. And for any slope r, a perpendicular slope will be 1/r.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.