Question

2 you can find an explanation of what a graphs symbols mean in the:
a key
b data
c x - axis
d y - axis

Explanation:

In a graph, the key (also called legend) is used to explain what the symbols, colors, or patterns represent. Data is the information being presented, the x - axis and y - axis are for plotting variables, not for explaining symbols. So the correct option is A.

Answer:

A. Key