Help?

http://prntscr.com/dd3nbe

Question

Help?

http://prntscr.com/dd3nbe

3mar · Answer

May I help?

theoneandonly · Answer

yes please

theoneandonly · Answer

I don't really know much about this stuff

3mar · Answer

Of course.
Pleasure is mine!

Domain is the set of points\values that related to the independent variable (x) which make the function\equation defined!

In your opinion what values of x that make the function defined?

3mar · Answer

In other words, is there any restrictions or limitation for the domain to be the whole real numbers?

theoneandonly · Answer

not sure

3mar · Answer

Look, mate!
This graph is due to a parabola that has an equation of the general form $y=ax^2+bx+c$, which is a polynomial!

and you know that any polynomial function (which has not any roots nor fractions nor logarithms) has a domain of the whole $real$ numbers $\Large R$.

3mar · Answer

@Theoneandonly
Do you follow?

theoneandonly · Answer

so the answer is All Real Numbers

3mar · Answer

along time ago!!

theoneandonly · Answer

lol sorry I wasn't on then, but thank you for your help

3mar · Answer

Anyway you hit the right choice!
$$\Huge\color{Coral}\checkmark$$


What matters is that you got the idea!
Didn't you?

theoneandonly · Answer

yes, but I need more practice just to get the hang of it