1. The problem asks to explain axial (line) symmetry in simple words. 2. Axial symmetry is a geometric transformation where a figure is reflected across a line called the axis of symmetry. 3. Each point of the figure has a symmetric image on the other side of the axis, at the same distance. 4. The axis of symmetry can be horizontal, vertical, or oblique. 5. In the case of the blue butterfly, the axis of symmetry is vertical because it divides the figure into two equal parts from left to right. 6. For the arrow pointing to the right, the axis of symmetry is also vertical because the arrow is symmetric with respect to a vertical line behind it. 7. In summary, axial symmetry reflects a figure across a line, creating a mirror image. The type of axis for both figures is vertical.