- Independent variable = rate of signaling by the carotid body; Dependent variable = rate of signaling by the medulla oblongata.
Directions: Use Figure 8 to answer questions 11-14. Three figures, Figures 1, 2, and 3 (below) each show a different linear relationship. The gray line in each figure represents a linear model of the relationship between an independent variable and a dependent variable. For questions 11-14, select the figure that bests depicts the linear relationship between each of the following interactions: Figure 1 Figure 2 Figure 3 dependent variable dependent variable dependent variable independent variable independent variable independent variable