Question

Can someone please help me on this math question? please? I'll fan and give a medal!!

Answer 1

State the domain of y = x^2 + 2

Answer 2

Domain are the values of x that you can insert in the function except on which the function is undefined. So, it is all real numbers in this case

Answer 3

domain are all "legal" x values
usually we assume all x are legal
then exclude "divide by zero" or square root of negative numbers

Answer 4

if you don't divide and don't take square roots (or fractional exponents)
chances are the domain is all real numbers
from -infinity to + infinity

Answer 5

Look at how x is being used on the right side.
You square any value of x, then you add 2.
Is there any number from negative infinity to positive infinity that you cannot square and add 2 to?
There is not, so the domain is all real numbers, or all numbers from negative infinity to positive infinity.

Answer 6

Thank you all!! all of these responses are very helpful!