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Triss [41]
4 years ago
7

Which description compares the domains of function A and Function B correctly?

Mathematics
2 answers:
valina [46]4 years ago
5 0

Answer:

Choice B is correct; the domain of function A is the set of real numbers greater than 0  

The domain of the function B is the set of real numbers greater than or equal to 1

Step-by-step explanation:

The domain of a function refers to the set of x-values for which the function is real and defined. The graph of function B reveals that the function is defined when x is equal 1 and beyond; that is its domain is the set of real numbers greater than or equal to 1 written in interval notation as;

[1, infinity)

On the other hand, the natural logarithm function is defined everywhere on the real line except when x =0; this will imply that its domain  is the set of real numbers greater than 0 . In fact, the y-axis or the line x =0 is a vertical asymptote of the natural log function; meaning that its graph approaches this line indefinitely but neither touches nor crosses it.

sweet [91]4 years ago
4 0

Answer:

B- the domain of function A is the set of real numbers is greater than 0  

The domain of the function B is the set of real numbers greater than or equal to 1

Step-by-step explanation:

The function A is f(x) = log(x)

By definition we know that the function f(x) = log(x) is not defined for values of x\leq0

Therefore the domain of f(x) = log(x) is:

All real numbers greater than 0.

x> 0

Function B shown in the graph is a curve that goes in x from x = 1 to infinity.

Therefore it can be seen that the domain of this function is:

all real numbers greater than or equal to 1.

x\geq 1.

Therefore the correct option is B.

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