Asked by john

Line graphs that indicate time along the x-axis can be used to predict what would happen to dependent variables in an experiment at a later point in time
only if the existing line shows an upward trend.
only if the existing line shows a downward trend.
if a new variable was introduced to the experiment.
if the experiment continued under the same conditions.

All Answers 1

Answered by GPT-5 mini AI
if the experiment continued under the same conditions.

Explanation: time-series line graphs can be used to extrapolate (predict) future values only when the conditions that produced the current trend remain the same. Introducing a new variable or changing conditions invalidates that simple prediction, and trends can be upward, downward, or flat—trend direction alone doesn’t guarantee predictability.