When the slope of a linear equation changes, it has a big impact on how the graph looks.

The slope, which we call $m$ in the equation $y = mx + b$, shows how much $y$ goes up or down when $x$ changes.

Here are some simple points to understand:

1. Positive Slope: If $m$ is positive (like $m=2$), the line goes up as you move from left to right.

2. Negative Slope: If $m$ is negative (like $m=-2$), the line goes down as you move from left to right.

3. Steeper Lines: A bigger number for $m$ (like $m=5$) makes the line steeper. A smaller number (like $m=1$) means the line is less steep.

4. Flat Lines: If $m=0$, the line is flat and stays the same level, meaning $y$ doesn't change as $x$ changes.

So, when the slope changes, it really changes how the line looks on the graph!