1. Let's clarify the meaning of "across the x-axis." 2. Reflecting a point or a graph across the x-axis means flipping it over the x-axis line. 3. If a point has coordinates $(x,y)$, its reflection across the x-axis will be $(x,-y)$. 4. For example, if you have a point at $(3,4)$, reflecting it across the x-axis gives $(3,-4)$. 5. This means the x-coordinate stays the same, but the y-coordinate changes sign. 6. For a function $y=f(x)$, its reflection across the x-axis is $y=-f(x)$. 7. This flips the entire graph upside down over the x-axis. 8. So yes, "across the x-axis" means reflected in the x-axis.