Question

A piecewise function is represented by the graph below.

Answer 1

Because we have an open circle at (1, 2), and then the line continues up, we conclude that the domain is:

D: x > 1.

What is the domain for the piece of the function represented by f(x) = x + 1?

Here we know that:

"The second line has an open circle at (1, 2)"

This means that the value x = 1 is not on the domain of the second line, and we know that the line "then continues up through (3, 4)"

(notice that these are two points on the line y = x + 1).

So we conclude that x = 1 is the lower bound of the domain of that line (and we can't tell that there is an upper bound).

Then we can just write the domain as:

D: x > 1.

So the last option is the correct one.

If you want to learn more about domains:

brainly.com/question/1770447

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