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What are the domain and range of the function f(x) = 3x + 5?

What are the domain and range of the function f(x) = 3x + 5?-example-1
User RiaanDP
by
7.6k points

2 Answers

3 votes

Answer:

correct answer is B

Explanation:

User Tetri
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8.4k points
4 votes

Answer:

B

Explanation:

Exponential functions are curves which approach a horizontal asymptote usually at y=0 or the x-axis. This function
3^x+5 has been moved up 5 units so its asymptote is at y=5. This means the function never goes below 5 in its y-values.

The x values are not affected and all are in the function. This is the domain. So the domain is (-∞, ∞).

The y values are affected and are y > 5. This is the range and it is written

(5, ∞).

Option B is correct.

User Neil Weicher
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7.3k points