You need to figure out where the rational expression is undefined. You may get an answer that includes those values. In that case, you have to know they will be excluded from the solution set.
Got it! so the point is ("Do NOT get a Denominator to equal zero, because if it does then that's when your in trouble...) Makes Sense Someone please let me know if I am right or wrong.
The point of this section is to be able to find where the function is undefined. If you end up with a solution that is a restricted value, it is not valid and must be rejected.
You need to find out where the denominator equals zero. In most cases, particularly in Algebra I, you will be given a problem that includes a factorable denominator. When the denominator is not factorable, you take the denominator, and set it equal to zero. You then must solve this equation to find the restricted value(s).
Mostly, you are thinking about what values of x will make the denominator equal to zero. We can't ever divide by zero, so we just set our denominator equal to zero and solve. The results will give you values of x that result in a zero denominator and these are restricted from the domain.
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Way more helpful than what my school provides (online math classes are not easy, lemme tell you)!
you were ahead of your time
@@owamisie4658 Thank God I graduated _last_ year.
my man be doing online classes before it was cool
I'm so glad that it was helpful! :)
Looking for an answer for my son and I had it within the first 49 seconds.
Thank you.
My Son thanks you.
Well done! Let me know if you get stuck on a problem.
My man draws better with a mouse than I do with an actual pencil
We use a Wacom Tablet, it lets you use a pen device to write on the screen. Good luck with your studies :)
THANKYOU I have literally been trying to find this for the past few hours, struggling with my math because of this exact problem
Perfect, glad it was helpful!
What is this point of this.? Are we just trying to find what isn't the answer.?
Why not just solve the equation.?
You need to figure out where the rational expression is undefined. You may get an answer that includes those values. In that case, you have to know they will be excluded from the solution set.
I know this was 9 years ago, but you saved me
Glad to hear that!
ohhh thank you very much this lesson is really hard to understand but know i understand it again thank you
You are very welcome, good luck with your studies :)
omg😭😭this was like 4 yrs ago haha im almost graduating in senior rn, anyways thanks hahahaha
@@seraphim2014 Cool, good luck with the senior year and college.
Is this for rational Algebraic expression???//
It's just called a rational expression.
This is so useful bc i'm still high school and didn't understand this
Perfect, glad it helped :)
Got it! so the point is ("Do NOT get a Denominator to equal zero, because if it does then that's when your in trouble...) Makes Sense
Someone please let me know if I am right or wrong.
Yes, you are correct. :)
My HM: (3/X)=(15/(8x))+3
It it asking that I find the restrictions on the variable but I already know that x=(3/8) so why find the restrictions.?
The point of this section is to be able to find where the function is undefined. If you end up with a solution that is a restricted value, it is not valid and must be rejected.
GreeneMath.com thanks.!
so how do you answer it?????? Not factorable or undefinable ??
You need to find out where the denominator equals zero. In most cases, particularly in Algebra I, you will be given a problem that includes a factorable denominator. When the denominator is not factorable, you take the denominator, and set it equal to zero. You then must solve this equation to find the restricted value(s).
thankx!!!
You are welcome! :)
This helped huge! Thanks!
You are very welcome! :)
can you please answer my assignment asap please as in now. i'm having a head ache because of this lesson
Kind of hard to do if you don't post it :)
So basically, the x values are the restrictions? It seems the opposite of what you're left with.
Mostly, you are thinking about what values of x will make the denominator equal to zero. We can't ever divide by zero, so we just set our denominator equal to zero and solve. The results will give you values of x that result in a zero denominator and these are restricted from the domain.
That sounds like a South Louisiana accent! Am I right? Either way, Thanks for the help.
Yes, from a place called Slidell. We all live in CA now though. :)
Lafayette here!
THANK YOU SO MUCH
You are very welcome :)
Omg thank you for this video so helped me understand it , everything makes sense now lmao it really does tho
Perfect glad it was helpful! :)
Oh my gosh thank you so much
You are very welcome! :)
THANK YOU
You are very welcome! :)
Exam for tommorow
Perfect, thanks for watching :)
0:01
another one
Yes!
0:02
Perfect, thanks for watching :)
That’s so easy lolz
Perfect, thanks for watching :)
Thanks for the videos, they're a huge help
You are very welcome! I'm glad they are helpful! :)