The function \( f(x) = -3 \) is a constant function. Let's find its domain and range:

### Domain:
The domain of a function is the set of all possible input values (x-values) for which the function is defined. Since \( f(x) = -3 \) is defined for every real number \( x \), the domain is:

\[
\text{Domain} = (-\infty, \infty)
\]

### Range:
The range of a function is the set of all possible output values (y-values). Since \( f(x) = -3 \) always returns \(-3\) regardless of the input \( x \), the range is:

\[
\text{Range} = \{-3\}
\]

### Summary:
- **Domain:** \( (-\infty, \infty) \)
- **Range:** \( \{-3\} \)

Would you like more details or have any questions?

Here are 5 related questions you might find interesting:
1. What is the domain and range of \( f(x) = 2x + 5 \)?
2. How does the domain and range change for a quadratic function like \( f(x) = x^2 - 4 \)?
3. What is the range of \( f(x) = \sin(x) \) over the interval \( [0, 2\pi] \)?
4. How do you find the domain and range of a rational function?
5. What is the domain and range of the exponential function \( f(x) = e^x \)?

**Tip:** For constant functions, the range is always a single value, which is the constant itself.

Discover how to find the domain and range of the constant function f(x) = -3. Understand the concept of domain as the set of all possible input values and range as the set of all possible output values. Suitable for students in Grades 7-9.

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