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We are given the function \( f(x) = -3x + 3 \) and need to find \( f(-x) \).

### Step-by-step solution:
1. Start with the given function:
   \[
   f(x) = -3x + 3
   \]

2. Substitute \( -x \) for \( x \):
   \[
   f(-x) = -3(-x) + 3
   \]

3. Simplify:
   \[
   f(-x) = 3x + 3
   \]

Thus, the expression for \( f(-x) \) is:
\[
f(-x) = 3x + 3
\]

Would you like more details on how the steps were done?

Here are 5 related questions to practice:
1. What is \( f(2) \) for the function \( f(x) = -3x + 3 \)?
2. Find \( f(0) \) for \( f(x) = -3x + 3 \).
3. If \( f(x) = -3x + 3 \), what is \( f(x+1) \)?
4. Solve for \( x \) if \( f(x) = 0 \) for \( f(x) = -3x + 3 \).
5. What type of function is \( f(x) = -3x + 3 \), and what is its slope?

**Tip:** Whenever you substitute a value into a function, carefully replace every occurrence of the variable in the expression!

Let f(x) = -3x + 3. Find the indicated expression, f(-x).

Learn how to find f(-x) when f(x) = -3x + 3 with a step-by-step solution. This algebra problem involves substituting -x for x in a linear function and simplifying the expression. Suitable for high school students in Grades 9-12.

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