can someone help.

Question

can someone help.

anonymous · Answer

number 1.

solomonzelman · Answer

the denominator can not equal zero ! 

so set the denominator equal zero, and solve for x.

$\large\color{blue}{ \it     9x-45=0 }$
$\large\color{blue}{ \it     9x=45 }$
$\large\color{blue}{ \it     x=5}$

So we know that if x equals 5, then the denominator will be zero....

What is the excluded value ?

anonymous · Answer

5?

solomonzelman · Answer

yeah

solomonzelman · Answer

Do you know what to do for  $\large\color{blue}{ \bf     number~~~2~~?}$

anonymous · Answer

nope, idk what to do for 2-5.

solomonzelman · Answer

You know the policy of this website that the asker is being guided by the helper, and answers are not handed out directly. Correct ?

solomonzelman · Answer

IF yes, say so and I'll start my guidance/assistance .

solomonzelman · Answer

$\Huge\color{blue}{ \sf     ✂  }$

anonymous · Answer

Yes, I wanna learn but math is hard for me to understand sometimes.

solomonzelman · Answer

So ...

do you see what I did for number 1 ?

anonymous · Answer

In a way. I can try it.

solomonzelman · Answer

you know that a denominator (the bottom of the fraction) can NEVER be equal zero. right?

anonymous · Answer

The denominator can never be equal to 0.

solomonzelman · Answer

Yes

solomonzelman · Answer

Never ever.. it's UNDEFINED if the denominator is zero.

solomonzelman · Answer

So... they are asking you 

"what are the excluded values of a function"

in other words,

"what value of x (if you put it in instead of x)  makes the denominator of the fraction be equal to zero"   ?

solomonzelman · Answer

Do you understand what I am trying to say ?

anonymous · Answer

multiply.

solomonzelman · Answer

Multiply ? where? why?

I don't know what you mean

anonymous · Answer

that's what you did for number 1.. 9 x 5 = 45

solomonzelman · Answer

yeah, that's what I WOULD do if I wanted to check . (to check that 5 is actually THAT value of x,  that makes the denominator be equal to zero.)

anonymous · Answer

yeah.

solomonzelman · Answer

Alright, so do you understand the statement below?

"excluded value"  is the value of x that makes the denominator be equal zero and therefore (makes the denominator be) undefined.

anonymous · Answer

somewhat.

solomonzelman · Answer

Alright...

can you find this "excluded value" in number 2?

solomonzelman · Answer

show your work in here

anonymous · Answer

2 x 24

solomonzelman · Answer

can you show me the steps and the answer please? I want to know how much you really understand.