Answer:
If the point (4,2) is reflected across both the x-axis and the y-axis, its new coordinates will be (-4,-2).
When a point is reflected across the x-axis, its y-coordinate changes sign, but its x-coordinate remains the same. So if we reflect (4,2) across the x-axis, we get (4,-2).
When a point is reflected across the y-axis, its x-coordinate changes sign, but its y-coordinate remains the same. So if we reflect (4,-2) across the y-axis, we get (-4,-2).
Therefore, reflecting (4,2) across both axes results in the point (-4,-2).