Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
charlotte123
Group Title
Choose the equation of the line passing through the point (1, 2) and perpendicular to y = 1/4x + 2.
y = 4x  6
y = 4x  6
y = 4x + 2
y = 4x
 one year ago
 one year ago
charlotte123 Group Title
Choose the equation of the line passing through the point (1, 2) and perpendicular to y = 1/4x + 2. y = 4x  6 y = 4x  6 y = 4x + 2 y = 4x
 one year ago
 one year ago

This Question is Closed

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
For two lines to be perpendicular, the product of their slopes must equal 1. The known line is in the slopeintercept form: \(y = mx + b\) where \(m\) is the slope and \(b\) is the yvalue of the yintercept. Use the slope to find the slope of the perpendicular line. Then use the known point to find the value of \(b\) for the perpendicular line.
 one year ago

charlotte123 Group TitleBest ResponseYou've already chosen the best response.0
@whpalmer4 so would the answer be a? :P
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
Well, what's the slope of the known line, and what's the slope of the line in a)? If you multiply them together, what do you get?
 one year ago

charlotte123 Group TitleBest ResponseYou've already chosen the best response.0
wait a sec I got this wrong >.> can u help me out? :(
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
That's why I'm here :)
 one year ago

charlotte123 Group TitleBest ResponseYou've already chosen the best response.0
XD so how do I start? :) this is a pretest, so I dont really know how to solve it or anything D:
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
Okay, look at my first post, where I describe the slopeintercept form. Now look at the equation in the question, and compare them. What is the coefficient of x in the equation? That will be the slope of the line.
 one year ago

whpalmer4 Group TitleBest ResponseYou've already chosen the best response.1
(the original line, that is)
 one year ago
See more questions >>>
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.