Levi decides to examine the effect of fertilizer on the growth of tomato plants. He chooses four plants for his experiment and applies varying amounts of fertilizer to three of them. He does not apply fertilizer to one plant.

Over a 15-day period, the plants receive fertilizer on Days 1, 4, 7, 10, and 13. Levi measures the height of all of his plants with a meter stick on Days 3, 6, 9, 12, and 15. He also makes sure to hold all experimental factors constant except for the fertilizer.

Where should the independent and dependent variables of Levi's experiment be placed when graphed?

In research investigations, dependent variables are variables whose values vary with the variable the researcher supplies and manipulates - the independent variable. It is the actual variable to be measured during the course of investigations.

The independent variable, on the other hand, is the variable that is supplied and varied to produce effects on the dependent variable.

In correlation analysis, the dependent variables are usually graphed on the x-axis while the independent variables are graphed on the y-axis.

This particular setting is obtained from the equation of a straight line:

y = mx + c

Where:

y is the independent variable
x is the dependent variable
c is the intercept
m is the slope of the graph

More on dependent and independent variables can be found here: https://brainly.com/question/1479694

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