Question

look at this graph of a function. (y is a function of x)

Answer 1

D.means all real numbers greater or equal than -4

Explanation

Step 1

The domain of a function is the set of all possible inputs for the function, x-values

Now, in the graph we can see, the line starts in -4

the, the domains goes from:

$-4$

to

the arrow indicates the functions continues to infinite, Hence

$\infty$

then, the domain is

$\lbrack-4,\infty\rbrack$

Step 2

in other words

$\lbrack-4,\infty\rbrack$

means all real numbers greater or equal than -4, so the answer is D

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