A few days ago
PlEaSe HeLp Me WiTh My AlGeBrA HoMeWoRk?
We’re supposed to write an equation for the line. So, like, for question #9 on the sheet, we pulled the points (4, 4) and (2,0 ) off the line. Then we wrote out our y=mx+b equation. And to figure out m, we did delta Y over delta X, and got +2. So now the equation was y=2x+b. And to get b, we did 0=2 multiplied by 2 + b, which is 0= 4 +b, so b= -4. So then our equation was y=2x-4. So if my two points are (-2, 5) and (2, -3) how would I do this equation?
Top 2 Answers
A few days ago
Favorite Answer
Wow, you lost me too, sorry.
0
A few days ago
Lets do the delta y over delta x:
m = (y2-y1)/(x2 – x1)
m = (5 – (-3))/(-2 -2)
m = 8/(-4)
m = -2
So now the equation is:
y = -2x + b
Now you can use either point and plug into the x and y, lets use (-2,5):
y = -2x + b
5 = -2(-2) + b
5 = 4 + b
1 = b
So your equation is:
y = -2x + 1
0
- Academic Writing
- Accounting
- Anthropology
- Article
- Blog
- Business
- Career
- Case Study
- Critical Thinking
- Culture
- Dissertation
- Education
- Education Questions
- Essay Tips
- Essay Writing
- Finance
- Free Essay Samples
- Free Essay Templates
- Free Essay Topics
- Health
- History
- Human Resources
- Law
- Literature
- Management
- Marketing
- Nursing
- other
- Politics
- Problem Solving
- Psychology
- Report
- Research Paper
- Review Writing
- Social Issues
- Speech Writing
- Term Paper
- Thesis Writing
- Writing Styles