Question

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

Answer 1

Question--
State the domain of y = 2x2 + 3
My answer-
Domain = all negative numbers, and all positive numbers.

Answer 2

what my teacher said-
"so x cannot be 0?"

Answer 3

Domain is all real numbers.

Your teacher was pointing out that "0" is neither positive or negative

Answer 4

The domain is all real numbers.
That includes all negatives, all positive, and zero.

Answer 5

When you say all negatives and all positives, you are not including zero, but since the domain is all real numbers, you need to include zero. instead of saying all negatives all positives and zero, just say all real numbers.

Answer 6

oh thank you very much!!!

Answer 7

yw