A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 2 years ago
If the 2 lines given by the equations 12x+3y=20 and ax+y=10 don't intersect when graphed, what is the value of "a"?
 2 years ago
If the 2 lines given by the equations 12x+3y=20 and ax+y=10 don't intersect when graphed, what is the value of "a"?

This Question is Closed

sasogeek
 2 years ago
Best ResponseYou've already chosen the best response.1if they don't intersect, it means they're parallel and their gradient is the same. find the gradient of the first equation and that's equal to "a" :)

zzr0ck3r
 2 years ago
Best ResponseYou've already chosen the best response.0set both equal to y, and make them have the same slope

zzr0ck3r
 2 years ago
Best ResponseYou've already chosen the best response.0as long as they dont have the same y intercept they will not cross if they have the same slope

zzr0ck3r
 2 years ago
Best ResponseYou've already chosen the best response.03y = 20 3x y = x(20/3) and the other equation set to y is what?

zzr0ck3r
 2 years ago
Best ResponseYou've already chosen the best response.0that should be +(20/3)

zzr0ck3r
 2 years ago
Best ResponseYou've already chosen the best response.0solve for y in the second equation

zzr0ck3r
 2 years ago
Best ResponseYou've already chosen the best response.0y = ax+10 we want them to have the same slope so what does a need to be? y = x+(20/3) y = ax+10 a = ?

sasogeek
 2 years ago
Best ResponseYou've already chosen the best response.112x+3y=20 solve for y 3y=12x+20 y=4x+(20/3) can u tell what the slope is?

sasogeek
 2 years ago
Best ResponseYou've already chosen the best response.1@mitchelsewbaran ... ?
Ask your own question
Ask a QuestionFind 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.