Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
DogLuverSarah2012
Group Title
How can you find the standard form of an equation using 2 given points?
 one year ago
 one year ago
DogLuverSarah2012 Group Title
How can you find the standard form of an equation using 2 given points?
 one year ago
 one year ago

This Question is Closed

geoffb Group TitleBest ResponseYou've already chosen the best response.1
Calculate your slope and the y intercept.
 one year ago

geoffb Group TitleBest ResponseYou've already chosen the best response.1
dw:1355021981183:dw
 one year ago

geoffb Group TitleBest ResponseYou've already chosen the best response.1
If A is at \((x_{A}, y_{A})\) and B is at \((x_{B}, y_{B})\), then slope is \(\large \frac{y_{B}  y_{A}}{x_{B}  x_{A}}\)
 one year ago

DogLuverSarah2012 Group TitleBest ResponseYou've already chosen the best response.0
Ok so what do I do once I have the slope?
 one year ago

geoffb Group TitleBest ResponseYou've already chosen the best response.1
Then you use it to find the yintercept. Remember, the yintercept is at point \((0, y_{C})\)
 one year ago

geoffb Group TitleBest ResponseYou've already chosen the best response.1
So, if you used point A, you could use \(\large m = \frac{y_{C}  y_{A}}{0  x_{A}}\)
 one year ago

DogLuverSarah2012 Group TitleBest ResponseYou've already chosen the best response.0
ok so once I have the yintercept???
 one year ago

geoffb Group TitleBest ResponseYou've already chosen the best response.1
Then put it in the form y = mx + b. m is the slope, and b is the yintercept.
 one year ago

DogLuverSarah2012 Group TitleBest ResponseYou've already chosen the best response.0
Ok,I understand that part but how do i find teh standard form of the equation,my book says it would be Ax +By=C but it doesn texplain how to find the equation using 2 given points.
 one year ago

geoffb Group TitleBest ResponseYou've already chosen the best response.1
Oh, sorry. I missed that part of your post. Standard form is just \(Ax + By = C\) (like you said). You can get it by rearranging your y = mx + b formula.
 one year ago

geoffb Group TitleBest ResponseYou've already chosen the best response.1
Bring y and mx to the same side, to equal b.
 one year ago

DogLuverSarah2012 Group TitleBest ResponseYou've already chosen the best response.0
Ok so I have teh x and y intercepts figured out but how do I find C?
 one year ago

geoffb Group TitleBest ResponseYou've already chosen the best response.1
C is just b (from y = mx + b)
 one year ago

DogLuverSarah2012 Group TitleBest ResponseYou've already chosen the best response.0
Ok thank you very much!!!
 one year ago

geoffb Group TitleBest ResponseYou've already chosen the best response.1
You're welcome.
 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.