Help with an Problem, can't identify too much what it is about

[blazing rain]

Hello!
Can anyone identify the name of this kind of Problem? Or at least provide an tutorial on how to fix it. Some people told me it seems like Discreet math.

[fervent sorrel]

whats the question?

[blazing rain]

The only way I could have solve this was by replacing the Xs, but still this was wrong according to my dad, cuz I can only do that with Ys or something like that

[blazing rain]

How Do I solve this

Or what is this kind of problem called

[fervent sorrel]

wheres the question?

[blazing rain]

It's above

[fervent sorrel]

this

[blazing rain]

Sorry if my english is bad

[blazing rain]

Ohhhh

You mean the question of the problem?

[fervent sorrel]

yes?

[blazing rain]

Nono, my dad just gave me those exercise and told me to figure out them.

[fervent sorrel]

icc theres like a) and b)

these two are different questions?

[blazing rain]

Yeah yeah

They are different questions

These are three questions

[fervent sorrel]

okay

u haave to graph it or something?

like find range or domain or what?

[blazing rain]

I have to write the sets

Like, the numbers

{3,4,5,6,7}

And so on

[fervent sorrel]

icc

[blazing rain]

And I think these numbers are the result of that mathematical operation

[fervent sorrel]

like u first put x=1 and find y

basically all integers (for b part)

[blazing rain]

Ohhhh

@fervent sorrel You mean that I replace the X with all the numbers? 1,2,3,4,5

[fervent sorrel]

yeah

u dont really have to put it

[blazing rain]

And those numbers will give me the result of the question?

[blazing rain]

Ohhhhh I initially did that, but my dad said it was wrong, and that would have applied

[fervent sorrel]

i mean u have to find the set of all the answers when u put x=1 then 2 then 3 4 5 right?

[blazing rain]

If these were Y and not X

Cuz Y was an Invariable

[fervent sorrel]

what was ur answer?

[blazing rain]

Variable*

Or something like that

[fervent sorrel]

okay this is easy

u know how to define a set?

[blazing rain]

Hold on I toke the photo of the paper

[blazing rain]

Like defining which elements are part of the set?

[fervent sorrel]

yeah?

for b :

S = {y: y= x^ + 2x + 1 , x ∊ Q}

easy as that

[blazing rain]

These were like that, the ones written in pencil (Sorry if my handwrite is not the best)

[fervent sorrel]

okay

[blazing rain]

Uhhhhhhhh.. It's that an expresion?

Oh and my answers in B I had to erase them, but went like

{4. 9. 16...}

But my dad said these were also wrong

[fervent sorrel]

There are two way to define a Set

1. Roaster form
2. Setbuilder form

for example if u have to represent a set of all prime number

roaster form would be like
S = {2,3,5,7,11, ............}

setbuilder form will be like
S = (x: x is prime )

[in set builder form ' : ' means ' such that ']
[so basically in setbuilder form its like
S = all x such that x is prime]

and then u can put ' , ' for conditions

[blazing rain]

OHHHHH

I know what u mean, also for setbuilder you could also use {2<x< 12}

Yeah I know that, But I knew these concepts in spanish

[fervent sorrel]

okay

[fervent sorrel]

yess

[blazing rain]

AHHH

I get it

Why the Y if the Y was like something invariable? @fervent sorrel

Variable* Like you could replace it with any nimber

[fervent sorrel]

nope but i have said that y = x^2 + 2x + 1

its defined in the set

[blazing rain]

Hmmmm

I think I know what u mean

[fervent sorrel]

so ' y ' will only be whats given as 'x'

gud

[blazing rain]

Sooooo, it would basically S? (Prime numbers)

[fervent sorrel]

bruh the prime number thing was just an example

[blazing rain]

Sorry sorry lol

[fervent sorrel]

can u show me the actual question from the book

cause from what u said to me i dont think the question would be that easy

[blazing rain]

Uhhhhh

These were given by my dad xd But I might find the question

Because most of the set related stuff are like AUB D e A and so on

[blazing rain]

It wouldn't surprise me

I'm seeing the first semester of maths rn

[fervent sorrel]

oh

okay so u got it?

[blazing rain]

Hmmm

Not sure how the X works@fervent sorrel

[fervent sorrel]

u can take help from someone else

okay

sorry then maybe i am not that good in explaining

[blazing rain]

This is like the only math server I went where I got an answer at it lol

[blazing rain]

Nah nah you can try bro

It's better than nothing

[fervent sorrel]

okay

u understand functions?

[blazing rain]

Linear functions?

Wait a second

[fervent sorrel]

okay if i say

f(x) = x^2 + 1

and ask u whats f(2)?

[blazing rain]

Uhhhhh

THis one sounds interesting

[fervent sorrel]

ic u havent studied 'Relation and Functions' yet

[blazing rain]

I have to "despejar" (Clear I think it is said(

[blazing rain]

It's like this one?

OOps

Wrong one

[fervent sorrel]

u dont know english?

[blazing rain]

Yeah I know

This one

But what I don't quite know is the mathematical language in English

[fervent sorrel]

oh

[blazing rain]

Yep

[fervent sorrel]

the question is probably to convert from set builder form to roaster form

[blazing rain]

OHHHHH

I think I know what u mean

Yeah likely

[blazing rain]

Then I'm going to conform with that explanation

Imma text u if I have any other Issues

[fervent sorrel]

okay

[blazing rain]

@fervent sorrel Do you also know of exercise within Set stuff that are like this?

[fervent sorrel]

yes

[blazing rain]

Send those too

[fervent sorrel]

u want some ?

sure

[blazing rain]

Yeah

[fervent sorrel]

on the right side of green line are the answers

[blazing rain]

Ohhh I see thxs, and do you have those that go more like extension?

[fervent sorrel]

i have some more

but they are like for JEE mains and advance is it fine if i share those too?

[blazing rain]

👀

[blazing rain]

Yep