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Graphing Systems of Equations  TOPIC_SOLVED

Can anyone help with this problem? The problem is:
Solve the following system of equations graphically.
x + y - 4 = 0
x - y = 0
The solution lies in quadrant _____.
A.I
B.II
C.III
D.IV

I can't figure out how to solve that.

Thanks,
SplitWindowVette
by SplitWindowVette
on Wed Dec 02, 2009 7:45 pm
 
Forum: Intermediate Algebra
Topic: Graphing Systems of Equations
Replies: 2
Views: 992

Re: Graphing Systems of Equations  TOPIC_SOLVED

nicknation wrote:
SplitWindowVette wrote:Solve the following system of equations graphically.
x + y - 4 = 0
x - y = 0

I can't figure out how to solve that.

solve them for y and then graph

http://www.purplemath.com/modules/graphlin.htm

the answer is where they cross


Thanks!
by SplitWindowVette
on Wed Dec 02, 2009 8:00 pm
 
Forum: Intermediate Algebra
Topic: Graphing Systems of Equations
Replies: 2
Views: 992

Slope-intecept form  TOPIC_SOLVED

Hi everyone, I know that the general form of a linear equation is Ax+By+C=0; and the slope-intercept form is y=Mx+B. But how would I get from the general form to the slope-intercept form? My equation is 2x-y-2=0 by solving for "Y" I get -Y=2-2X or Y=-2+2X Did I solve that right? Or is ther...
by SplitWindowVette
on Wed Dec 02, 2009 9:09 pm
 
Forum: Intermediate Algebra
Topic: Slope-intecept form
Replies: 3
Views: 1168

Re:  TOPIC_SOLVED

stapel_eliz wrote:Your instructor might prefer that the slope-intercept form be stated as:

. . . . .

...but your solution and method are fine! :wink:


Is there any difference?
by SplitWindowVette
on Wed Dec 02, 2009 9:39 pm
 
Forum: Intermediate Algebra
Topic: Slope-intecept form
Replies: 3
Views: 1168

Re: real life examples  TOPIC_SOLVED

Anyone have any ideas of real life examples of where it would be necessary to use a radical expression and a rational exponent. I'm looking for two different examples; one for each. Thanks, Lisa One example of a radical expression (yes, it is a little confusing) is the rate of diffusion of a gas. W...
by SplitWindowVette
on Thu Dec 03, 2009 3:00 pm
 
Forum: Intermediate Algebra
Topic: real life examples
Replies: 1
Views: 2054

Re: LaTeX capability installed

supguys wrote:I don't understand. :popcorn:


Go to: viewtopic.php?f=21&t=222
by SplitWindowVette
on Thu Dec 03, 2009 3:40 pm
 
Forum: News
Topic: LaTeX capability installed
Replies: 2
Views: 5647

Percent Problem  TOPIC_SOLVED

Can someone please check this problem to see if I did it right?(This problem was just for fun). 20% of the male students at Carnage Middle School buy lunch in the cafeteria. The number of female students who buy lunch is 80% of the number of male students who buy lunch, but there are 20% more female...
by SplitWindowVette
on Thu Dec 03, 2009 7:20 pm
 
Forum: Intermediate Algebra
Topic: Percent Problem
Replies: 2
Views: 1090

A quick question

In the user control pannel, there is an option that says "display topics direction by ascending or descending". What does that mean?
by SplitWindowVette
on Thu Dec 03, 2009 7:40 pm
 
Forum: Forum Rules & Guides
Topic: A quick question
Replies: 2
Views: 3592

Re: Percent Problem  TOPIC_SOLVED

maggiemagnet wrote:Check your answers. Do you have a number of girls that is 20% more than the number of boys? Find 20% of the boys, and then find 80% of this amount. Does this equal 48? :clap:


Yes, but it took me forever to figure it out.
by SplitWindowVette
on Fri Dec 04, 2009 1:36 pm
 
Forum: Intermediate Algebra
Topic: Percent Problem
Replies: 2
Views: 1090

"Comparasion Method"  TOPIC_SOLVED

I know how to solve systems of equations by graphing and substituting, but not with the comparision method, can someone help?
by SplitWindowVette
on Tue Dec 08, 2009 4:47 pm
 
Forum: Intermediate Algebra
Topic: "Comparasion Method"
Replies: 4
Views: 1986
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