A community for students.
Here's the question you clicked on:
 0 viewing
ineedyouubiebs
 one year ago
Help! The question is attached!
ineedyouubiebs
 one year ago
Help! The question is attached!

This Question is Closed

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Attempt to solve for x! (4,y) and (7,6); slope:4

Psymon
 one year ago
Best ResponseYou've already chosen the best response.1\[\frac{ 6y }{ 74 }=4\] \[\frac{ 6y }{ 3 }=4 \] I just set it up like the normal slope equation, (y2y1)/(x2x1). Now just see if you can solve for y.

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Olay, let me try it out for myself to see if I understand it

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Wait, I get 6 / 3 how did you get 4?

Psymon
 one year ago
Best ResponseYou've already chosen the best response.1You said the slope = 4, right? Well, the result of (y2y1)/(x2x1) is slope. But we already have the slope, so I just set the equation equal to 4.

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Ahhhhhh okay I see how you set it up!

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0And then you subtract the bottom, correct?

Psymon
 one year ago
Best ResponseYou've already chosen the best response.1Yeah, which left me with \[\frac{ 6y }{ 3 }=4 \]Would you know how to use that to solve for y?

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0My guess is that I multiply 6 and 3

Psymon
 one year ago
Best ResponseYou've already chosen the best response.1Just multiply both sides by 3 to start.

Psymon
 one year ago
Best ResponseYou've already chosen the best response.1That will cancel the 3 out of the denominator of the fraction.

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0So would it be 18+3y=4

Psymon
 one year ago
Best ResponseYou've already chosen the best response.1Nah. Okay, so we multiply both sides by 3 and it looks liek this: \[\frac{ 3(6y) }{ 3 }=4(3)\]From here, the 3's on the left cancel out and 4 and 3 multiplies to get: \[6y = 12 \] Kinda see why?

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Yea aha I sorta do, it's because I got 183y=12 when I multiplied it by 3

Psymon
 one year ago
Best ResponseYou've already chosen the best response.1Yeah, but you dont multiply the 6 and the y by 3. Because you have a 3 on top and bottom, they cancel out and become 1. That is the whole purpose of multiply by 3 is because itll get rid of the denominator. It's just like if we had: \[\frac{ x }{ 3 }=3 \]Because x is divided by 3, to get it by itself we do the opposite operation and multiply by 3. dw:1378605836732:dw Same thing with our problem: dw:1378605874087:dw

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Ahhhhhh okay I see now! And then after I get 6y=12 I add 6 to both sides

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0When I divide y to both sides, would I be dividing y or just y?

Psymon
 one year ago
Best ResponseYou've already chosen the best response.1Well if you have y = 6, it does no good to divide by y or y. If you divided by y you get: \[1=\frac{ 6 }{ y } \] You just want to divide by 1 is all to get y by itself.

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0And the final answer will be y=6

Psymon
 one year ago
Best ResponseYou've already chosen the best response.1Bingo. Can even test it :3 \[\frac{ 66 }{ 74 }=\frac{ 12 }{ 3 }=4 \] So yep, works :3

ineedyouubiebs
 one year ago
Best ResponseYou've already chosen the best response.0Thank you much, you explained very well unlike most people here :D do you have time to help me with another 3 problems I had trouble with?
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.