Answer:
A connected, solid, graph is called a continuous graph. A disconnected graph, made of separate dots, is called a discrete graph.
Explanation:
A discrete graph shows us that there are no data values between the whole numbers on which the points are plotted. This generally means no decimal portions. However, when representing time, we can have a decimal portion of a year; this means the graph would have values between the whole numbers and would be continuous, or solid.