Question

you just found that the slope is 4. what does a slope of 4 mean in this situation?
volume in the container (milliliters), v
number of cubes, x
the volume is 4 milliliters when 4 cubes are added.
the volume increases 1 milliliter for every 4 cubes added.
the volume increases 4 milliliters per 1 cube added.

Explanation:

In a linear graph where the x-axis is the number of cubes and the y-axis is volume, slope represents the rate of change of volume per cube added. A slope of 4 means for each 1-unit increase in x (1 cube added), y (volume) increases by 4 units (4 milliliters).

Answer:

The volume increases 4 milliliters per 1 cube added.