To find the zeros of the function $f(x) = 4x - 9$, we need to solve the equation $f(x) = 0$.

$4x - 9 = 0$

To solve for $x$, follow these steps:

1. Add 9 to both sides of the equation: $4x = 9$

2. Divide both sides by 4: $x = \frac{9}{4}$

So, the zero of the function $f(x) = 4x - 9$ is $x = \frac{9}{4}$ or $x = 2.25$.

Would you like any additional details or have any questions?

Here are 5 related questions you might be interested in:

1. How do you find the zeros of a quadratic function?
2. What are the steps to solve a linear equation?
3. How can you determine if a function has no real zeros?
4. What is the significance of the zeros of a function?
5. How do you graph a linear function and identify its zeros?

Tip: When solving for the zeros of a function, you're finding the points where the graph intersects the x-axis.