The given function is:

$f(x) = -2x + 4$

This is a linear function, where:

• Slope (m): -2, which means the line decreases by 2 units for every 1 unit increase in $x$.
• Y-intercept (b): 4, which means the line crosses the y-axis at $y = 4$.

Would you like more details on this function or how it behaves graphically?

Here are some related questions to expand your understanding:

1. What is the slope-intercept form of a linear equation?
2. How do you find the x-intercept of a linear function?
3. What does the slope of a line represent in a real-world context?
4. How can you determine if two lines are parallel using their equations?
5. How would the graph of $f(x) = -2x + 4$ change if the slope were positive?

Tip: A negative slope indicates that the function is decreasing; as $x$ increases, $f(x)$ decreases.