Question

what label is along the y - axis in this graph? number of teens; copyright 2007; lines; age in years

Explanation:

The y-axis of the graph represents the measured quantity that changes with the variable on the x-axis. In typical graphs tracking teen-related data, the number of teens is the measured value, while age (x-axis) is the independent variable. The other options are irrelevant to axis labeling.

Answer:

A. Number of Teens