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Which of the following is the DOMAIN of y = x² + 2x + 1?
OA) set of some real numbers
O B) set of all real numbers
C) set of positive real numbers
O
D) set of all negative numbers​

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KANATAHOSHIJIMA31GO

Answer:

B. Set of all real numbers

Step-by-step explanation:

Let's first picture the graph of y = x^2 + 2x + 1. It will be a parabola opening up.

The domain of a graph tells us which values of x will yield a result in y.

In this case, our polynomial is a function, and it doesn't contain any variable in the denominator.

Therefore, we can safely say that all real numbers will have a corresponding y value.

Hope this helps!

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