Ask your own question, for FREE!
Mathematics 16 Online
OpenStudy (anonymous):

Help with Linear Inequalities in Two Variables

OpenStudy (anonymous):

zepdrix (zepdrix):

Are you able to tell which line is \(\Large\bf\sf \ell_1\) and which is \(\Large\bf\sf \ell_2\) ?

OpenStudy (anonymous):

i mean A and B

OpenStudy (anonymous):

yes i am i say tht the answer is D but not sure and not risking getting it wrong

zepdrix (zepdrix):

Inequalities with y are pretty straight forward, `shading above` means the area which is greater than the line: y > `stuff with x` x inequalities are little trickier. `shading to the right` means the area which is greater than x.

zepdrix (zepdrix):

So you're saying that we should shade to the right of \(\Large\bf\sf \ell_1\) since x is greater than the line, and below \(\Large\bf\sf \ell_2\) since y is less than that line.

zepdrix (zepdrix):

Yessss good job! What's up with all of the D's? lol Is that like the 3rd one now?

OpenStudy (anonymous):

lol idk

OpenStudy (anonymous):

may u help me with another 1

zepdrix (zepdrix):

maybe +_+

OpenStudy (anonymous):

lol

zepdrix (zepdrix):

Getting another picture ready? :o

OpenStudy (anonymous):

zepdrix (zepdrix):

Don't bother plotting points and all that jazz. It's a little easier if we just look at the slopes. See how the first line has a `positive` slope (the coefficient on the x). The tells us the line will slope upward as it moves to the right. So the first equation is the `red` line.

zepdrix (zepdrix):

It's a `strict inequality`, so we `exclude` the values on the line. We use a dashed line to represent that, yes?

OpenStudy (anonymous):

which is a solid 2

zepdrix (zepdrix):

What? :U Solid is for \(\Large\bf\sf \le\), right?

zepdrix (zepdrix):

Ooo hold on my french fries are burning +_+ gotta get em out of the oven!

OpenStudy (anonymous):

ye u r right lol

zepdrix (zepdrix):

Never marry a man who can wiggle h... Grr I can't see the rest of it >.< looks like a good read.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!