anonymous
  • anonymous
solve the system of equation by graphing. Then classify the system x=8,y=-6, is it a solution or infinity solution
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
You have to plot each line and see where they intersect. Geometrically, the point of intersection is that point where both equations are satisfied. Now, x=8 means...x=8 FOR ALL y...so you have a vertical line moving down that cuts the x-axis at 8. y=-6 means FOR ALL x, y = -6...so you plot a horizontal line that cuts the y-axis at -6. Now you ask yourself, "Do these lines intersect?" The answer is 'Yes'...and they intersect at the point (8,-6).
anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
ok so what would the order pairs be for the solution and would it be consistent or inconsistent and would it be dependent or independent

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
The solution is consistent since it works for both equations. The system is independent because you cannot write one equation in terms of the other (graphically, if they were consistent, they'd lie on top of each other - they don't here).
anonymous
  • anonymous
so will the solution be (8,-6)
anonymous
  • anonymous
yes
anonymous
  • anonymous
thank you and can I become a fan of yours and how would get in touch with you
anonymous
  • anonymous
I'd love it if you were a fan. If you don't see a blue link saying, "Become a fan" next to my name above, you may have to refresh the screen.
anonymous
  • anonymous
I became a fan
anonymous
  • anonymous
[thumbs up]
anonymous
  • anonymous
Can I ask an other question please
anonymous
  • anonymous
If you want to refer back to me re. questions, if you leave this window and go look at another question or something, I will post something here and you should get an e-mail about it. Save that e-mail and you'll have a link back to this thread.
anonymous
  • anonymous
Assuming you have e-mail notification on.
anonymous
  • anonymous
Solve the equation by the elimination method 5x+5y=-11 7x-3y=13
anonymous
  • anonymous
This method needs you to solve one of the equations for one of the variables, and then substitute that result into the OTHER equation to remove one of the variables. When we do this, we're find the points (x,y) that will satisfy both equations. So, take the first and solve for y:\[5x+5y=-11 \rightarrow 5y=-11-5x \rightarrow y=-\frac{11}{5}-x\]Now substitute this expression for y in terms of x into the OTHER equation to get
anonymous
  • anonymous
\[7x-3\left(- \frac{11}{5}-x \right)=13 \]\[7x+\frac{33}{5}+3x=13\]\[10x=\frac{32}{5}\]so\[x=\frac{32}{50}\]
anonymous
  • anonymous
which is the same as 16/25. Now substitute this x-value into ANY of the two equations (since at this x-value, the y-value we're looking for should be the same in both equations):\[5 \times \frac{16}{25}+5y=-11 \rightarrow \frac{16}{5}+5y=-11 \rightarrow 5y=-\frac{71}{5}\]so \[y=-\frac{71}{25}\]
anonymous
  • anonymous
Just let me check the numbers. The method is absolutely correct, though.
anonymous
  • anonymous
The numbers are wrong. I hate writing stuff out on this thing. Let me do it on paper and scan.
anonymous
  • anonymous
I have 3 choices: 1) what is the solution pair, 2)Is there an infinitely many solution 3) or there is no solution
anonymous
  • anonymous
Actually, I'm right.
anonymous
  • anonymous
The solution pair is \[x=\frac{16}{25}, y= -\frac{71}{25}\]
anonymous
  • anonymous
Graph the system of inequalities, y>= -3, x>=4
anonymous
  • anonymous
I got (4,4)
anonymous
  • anonymous
You have to graph it. It will be a region. y>=-3 means all y greater than of equal to -3, so you start by drawing a line that includes -3 (sometimes you have to draw a dashed line, if the inequality is strict (i.e < or >, rather than <= or >=)). Then your y's lie above that, so shade it lightly (with lead pencil or something (so you can use an eraser later)). Now, x>=4 means all x that are greater than or equal to 4, so you have to draw a vertical line through x=4 and shade (lightly) everything to the right. The place where the shading from both parts meet is your solution...because this is the region where BOTH of your inequalities are satisfied. Shade that heavily as your solution (and rub out the rest, if you can).
anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
Hope it all helps. I have to go now. There are some other people on here who can help too. Just post a new question in the 'Ask a question' box.
anonymous
  • anonymous
ok thank u

Looking for something else?

Not the answer you are looking for? Search for more explanations.