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5 votes
What are the domain an range of function f(x)=3^x+5

2 Answers

3 votes

Answer:

D: all real numbers

R: (5, ∞)

Explanation:

D: you can plug in anything for x and it makes sense. You can raise 3 to any real power (2, 1/2, -10 etc) and get an answer.

R: Because 3^x only produces positive numbers, the range is (0+5, ∞) ---> (5, ∞).

User Martin Schapendonk
by
7.4k points
6 votes

Answer:

Domain (-∞, ∞).

Range (5, ∞).

Explanation:

The domain is all real values of x or in interval notation (-∞, ∞).

The 3^x can only have a value greater than 0.

So the range is f(x) > 5.

User Corno
by
7.4k points

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