Question

4.3.2 quiz: generating a biofuel
a line graph has a vertical axis labeled \average plant mass (g)\ and a horizontal axis labeled \herbicide (g/plant).\ what information is conveyed by a point plotted with the coordinates (3, 10)? keep in mind coordinates are written as (x-coordinate, y-coordinate).
graph image: y-axis (average plant mass (g)) from 0 to 50, x-axis (herbicide (g/plant)) from 0 to 10, with a blue dot at (3,10)
a. the average mass of plants exposed to 3 g of herbicide was 10 g.
b. the average mass of plants exposed to 10 g of herbicide was 3 g.
c. the range of average plant mass was from 3 g to 10 g.

Explanation:

The x - coordinate of the point (3, 10) corresponds to the "Herbicide (g/plant)" axis, so the herbicide amount is 3 g/plant. The y - coordinate corresponds to the "Average plant mass (g)" axis, so the average plant mass is 10 g. Option A matches this interpretation. Option B swaps the x and y values. Option C is incorrect as the range is not related to a single point's coordinates.

Answer:

A. The average mass of plants exposed to 3 g of herbicide was 10 g.