Final answer:
The graph has line symmetry or mirror symmetry. The function increases as the x-values increase.
Step-by-step explanation:
The graph has line symmetry or mirror symmetry. This means that if you fold the graph along a specific line (usually the y-axis), both sides of the graph will be identical. In terms of the function increasing, since the slope of the line is positive, this means that as the x-values increase, the function values also increase.