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1 vote
What is the range of f(x) = 3^× + 9

User Emjey
by
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2 Answers

5 votes

Final answer:

The range of the function
f(x) = 3^x + 9is all real numbers greater than 9, expressed in interval notation as (9, ∞).

Step-by-step explanation:

The range of the function
f(x) = 3^x + 9 can be determined by analyzing the behavior of the exponential function. The base, which is 3 in this case, is a positive number greater than 1. Therefore, as x increases, the value of
3^x grows larger without bound. This exponential growth occurs for all real values of x. Since every output of
3^xis a positive number and adding 9 shifts the graph vertically upward by 9 units, the smallest value f(x) can take on is just above 9, no matter how large or small x is. Therefore, the range of
f(x) = 3^x + 9 is all real numbers greater than 9, which can be written in interval notation as (9, ∞).

User Allen Edwards
by
6.3k points
6 votes
then greater module(abs value) of negative x , than smaller will be 3^x, 3^x will go to the zero,
so range is (9,∞)
User Nodeffect
by
7.3k points
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