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3 votes
What is the domain of the function y = l n (x + 2)

A. x < -2
B. x > -2
C. x < 2
D. x > 2

2 Answers

3 votes

Answer:

b.x>-2

Explanation:

edge 2021

0 votes

Answer:

Option B.

Explanation:

For a function f(x), the domain is the set of all the possible values of x that can be used in the function.

We know that the natural logarithm is only defined for positive real numbers.

So, the function:

Ln(x + 2)

Works always that

x + 2 > 0

So we can just solve this inequality for x, and that will give us the domain of the function.

To isolate x, we just need to subtract 2 in both sides of the inequality.

x + 2 - 2 > 0 - 2

x > - 2

This is the domain of the function.

The correct option is B.

User Niamh
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