When a function "crosses the x-axis," it means the points where the function intersects the x-axis. Mathematically, these points are called **roots** or **zeros** of the function, and they occur when the function's output value (y) is equal to zero.

### Step-by-step explanation of what happens when a function crosses the x-axis:

1. **Definition**: A function \( f(x) \) crosses the x-axis at

Learn how to determine where a function crosses the x-axis by finding the roots or zeros of the function. This explanation covers essential algebraic concepts such as graphing and solving f(x) = 0, making it perfect for students in Grades 8-10.

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