To find \( f(-3) \) for the function \( F(x) = 5 - 3x \), follow these steps:

1. Substitute \( x = -3 \) into the function \( F(x) \).

   \[
   F(-3) = 5 - 3 \cdot (-3)
   \]

2. Calculate the value:

   \[
   F(-3) = 5 + 9
   \]

3. Simplify the result:

   \[
   F(-3) = 14
   \]

Therefore, \( f(-3) = 14 \).

Would you like more details or have any questions?

Here are some related questions for further practice:
1. Find \( F(2) \) for \( F(x) = 5 - 3x \).
2. Determine the value of \( F(-1) \).
3. What is \( F(0) \)?
4. Find \( F(x) \) when \( x = 4 \).
5. Determine the inverse of the function \( F(x) = 5 - 3x \).
6. What is the slope of the function \( F(x) = 5 - 3x \)?
7. If \( F(x) = y \), express \( x \) in terms of \( y \).
8. How does the graph of \( F(x) = 5 - 3x \) look like?

**Tip:** When dealing with negative values, be careful with the signs during multiplication and addition/subtraction.

Learn how to calculate f(-3) for the linear function F(x) = 5 - 3x step-by-step. Understand the concept of linear equations and function notation with detailed explanations. Suitable for Grades 7-9.

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