Question

An experiment was performed where radish seedlings were grown in red, blue, green, and white light. The height of plants was measured once per week for 8 weeks. If you were making a graph, the light color goes on which axis: x or y? EXPLAIN!

Answer 1

In a graph depicting the growth of radish seedlings under different light colors, the light color is assigned to the x-axis as the independent variable, and the plant height is plotted on the y-axis as the dependent variable.

Step-by-step explanation:

When constructing a graph for the experiment where radish seedlings were grown under different colors of light, the light color should be placed on the x-axis, and the height of the plants should be plotted on the y-axis. This is because the x-axis is typically used to represent the independent variable, which is the variable that is changed or controlled in an experiment to test the effects on the dependent variable. In this case, the color of light is the independent variable since it is being changed to observe its effect on plant height, which is the dependent variable.

The y-axis, then, represents the dependent variable, which is the outcome of the experiment that is being measured—in this instance, the height of the plants. By placing the colors of light on the x-axis and the plant heights on the y-axis, it is easy to compare the effect of each light color on the growth of the radish seedlings. This format also follows the conventional graphing standards which makes the data interpretation by others straightforward.