The Y axis is indeed the vertical axis where data values are plotted in a two-dimensional graph, and this is true (A) in the context of graphs.
The question asks whether the Y axis is the vertical axis where data values are plotted. The correct answer is A) True. In a two-dimensional graph, the horizontal axis is known as the x-axis, and the vertical axis is known as the y-axis. When plotting data on a graph, the x-axis typically represents the independent variable, while the y-axis represents the dependent variable. For example, if you are graphing the relationship between time and distance, time would be on the x-axis and distance would be on the y-axis. The formula for a straight-line graph, which is y = mx + b, also confirms that y represents the value plotted on the vertical axis.