Answer
The function \( f(x) = \frac{4}{x + 2} \) is defined for all real numbers except \( x = -2 \), where it is undefined. For other values of \( x \), the function can be evaluated as follows:
- \( f(0) = 2 \)
- \( f(1) = \frac{4}{3} \)
- \( f(-3) = -4 \)
- \( f(-2) \) is **Undefined**
Ensure to simplify all fractions and express the results as integers or simplified fractions.
Solution
To determine the function values for \( f(x) = \frac{4}{x + 2} \), we'll evaluate the function for specific values of \( x \). However, since no specific \( x \)-values were provided, I'll outline the general approach and highlight important points about the function.
### **Understanding the Function \( f(x) = \frac{4}{x + 2} \)**
1. **Domain of the Function:**
- The function is defined for all real numbers except where the denominator is zero.
- Set the denominator equal to zero and solve for \( x \):
\[
x + 2 = 0 \quad \Rightarrow \quad x = -2
\]
- **Domain:** All real numbers \( \mathbb{R} \) except \( x = -2 \).
- **Undefined Point:** \( x = -2 \) (At this point, the function is **Undefined**).
2. **Evaluating \( f(x) \) for Specific Values:**
- **Example 1:** \( x = 0 \)
\[
f(0) = \frac{4}{0 + 2} = \frac{4}{2} = 2
\]
- **Example 2:** \( x = 1 \)
\[
f(1) = \frac{4}{1 + 2} = \frac{4}{3}
\]
- **Example 3:** \( x = -3 \)
\[
f(-3) = \frac{4}{-3 + 2} = \frac{4}{-1} = -4
\]
- **Example 4:** \( x = -2 \)
\[
f(-2) = \frac{4}{-2 + 2} = \frac{4}{0} \quad \text{(Undefined)}
\]
3. **Summary of Function Values:**
| \( x \) | \( f(x) \) |
|---------|--------------------|
| 0 | \( 2 \) |
| 1 | \( \frac{4}{3} \) |
| -3 | \( -4 \) |
| -2 | **Undefined** |
### **Key Points to Remember:**
- **Undefined Point:** \( x = -2 \) makes the denominator zero, rendering \( f(x) \) undefined.
- **Simplified Fractions:** Ensure that all fractions are simplified. For example, \( \frac{4}{2} = 2 \) and \( \frac{4}{3} \) is already in its simplest form.
- **Expressing as Integers or Simplified Fractions:** Always simplify the function values as much as possible unless the result is undefined.
If you have specific \( x \)-values you'd like to evaluate, feel free to provide them, and I can calculate the corresponding \( f(x) \) values for you!
Reviewed and approved by the UpStudy tutoring team
Explain
Simplify this solution