SOLUTION: Okay, not sure if I did these problems right or not.. my algebra book isn't very clear with the process. 1. Determine the slope and y-intercept of the graph: 3x + y = 8

Algebra.Com
Question 388386: Okay, not sure if I did these problems right or not.. my algebra book isn't very clear with the process.
1. Determine the slope and y-intercept of the graph: 3x + y = 8
I got slope = 3, y-intercept = 8? right or wrong? if so please explain
2. Determine the slope and y-intercept of the graph: -x + 2y =4.
I got slope = -1/2, y-intercept = 2? same as above
Thank You Everyone who helps me here! xoxo

Found 2 solutions by jim_thompson5910, mananth:
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
# 1

Start with the given equation.


Subtract from both sides.


Rearrange the terms.


So the equation is now in slope intercept form where the slope is and the y-intercept is note: the y-intercept is the point


==============================================================================
# 2




Start with the given equation.


Add to both sides.


Rearrange the terms.


Divide both sides by to isolate y.


Break up the fraction.


Reduce.


So the equation is now in slope intercept form where the slope is and the y-intercept is note: the y-intercept is the point


If you need more help, email me at jim_thompson5910@hotmail.com

Also, feel free to check out my tutoring website

Jim

Answer by mananth(16946)   (Show Source): You can put this solution on YOUR website!
1. Determine the slope and y-intercept of the graph: 3x + y = 8
I got slope = 3, y-intercept = 8? right or wrong? if so please explain
3x + y = 8
add -3x to both sides
y =-3x+8
compare with y = mx+b
slope = -3
y intercept = 8

2. Determine the slope and y-intercept of the graph: -x + 2y =4.
I got slope = -1/2, y-intercept = 2? same as above
-x+2y=4
add x to both sides
2y=x+4
/2
y=1/2 *x+2
m= 1/2
y intercept = 2
...
m.ananth@hotmail.ca

RELATED QUESTIONS

{{{ y = -4x + 1 }}} The directions in my Algebra book is to "graph this equation". I'm (answered by rapaljer)
Problem: With a head wind, a plane travled 1000 mi in 4 h. With the same wind as a tail... (answered by mananth)
still having problems helping my son, please help. the problem is 3/2d2 + 4/3d the... (answered by ptaylor)
In how many ways can 12 books be divided between A and B so that one may get 9 books and... (answered by sudhanshu_kmr)
I AM A PARENT TRYING TO HELP MY 13 YR. OLD WITH HIS ALGEBRA. I HAVE BEEN OUT OF SCHOOL... (answered by checkley71)
My daughter has just started pre-algebra has homework and did not get to bring home book... (answered by MelanieBCC)
The following questions are driving me crazy, please help!!!!! 1) Express as a single... (answered by Earlsdon)
The sales representative here tells you they also have two floor plans available, but... (answered by Theo)
This problem was labled in my textbook as a nonlinear equation, but I couldn't find a... (answered by Fombitz,Theo,KMST,ikleyn,MathTherapy)