Thus, if you are not sure content located on or linked-to by the Website infringes your copyright, you should consider first contacting an attorney. Hanley Rd, Suite St. Louis, MO We are open Saturday and Sunday! Subject optional. Email address: Your name:. Possible Answers: Neither variable is independent. Correct answer: Time. Explanation : An independent variable is manipulated by the experimenter.
In the graph, the independent variable will be graphed on the x-axis. Report an Error. When looking at velocity in terms of distance and time, what is the independent variable? Possible Answers: Time. Explanation : There are a few ways to think of this question. Possible Answers: Acceleration. Explanation : Independent variables are predetermined by the experimenter and can be manipulated to change the measured dependent variable.
Where is the independent variable most commonly displayed on a graph? Possible Answers: Along both the x- and y-axes. Sometimes along the x-axis and sometimes along the y-axis. You are testing the toxicity of a new drug. You administer different doses to groups of mice and determine the percentage of the group that died as a result.
You are following the crime rate in Columbus, MS, over the past year. You are counting the number of crimes in each month. You take all the crimes in Columbus, MS, in the past year and classify them according to type murder, robbery, assault, etc.
You are comparing three different cold remedies. The value of graphing this relationship is best understood by considering the following equation. If you need to plot data using Excel and analyze using linear regression, here is a helpful video.
An independent variable is the variable you have control over, what you can choose and manipulate. Example: You are interested in how stress affects heart rate in humans. Your independent variable would be the stress and the dependent variable would be the heart rate.
You can directly manipulate stress levels in your human subjects and measure how those stress levels change heart rate. The dependent variable is 'dependent' on the independent variable. As the experimenter changes the independent variable, the change in the dependent variable is observed and recorded.
A scientist is testing the effect of number of hours spend in gym on the amount of muscle developed. The independent variable is the number of hours in gym deliberately changed and the amount of muscles developed is the dependent variable.
Graphing: independent and dependent variables Chemistry Measurement Graphing: independent and dependent variables. Therefore, rainfall is the dependent variable and time of year is the independent variable. In some graphs, you may have more than one dependent variable, but never more than one independent variable. For example, you may overlap plots of rainfall in the desert and rainfall in the tropics against time of year, or you could graph inches of rainfall in and against time of year.
The independent variable belongs on the x-axis horizontal line of the graph and the dependent variable belongs on the y-axis vertical line. The x and y axes cross at a point referred to as the origin , where the coordinates are 0,0. In graphs with only positive values for x and y, the origin is in the lower left corner.
Each axis needs a scale to show the range of the data on that axis. The low end of the scale may be zero or a round number value slightly smaller than the smallest data point. The high end of the scale is usually a round number value slightly larger than the largest data point. The scale is measured off in major and minor tick marks. Typically the scale runs from low to high in easily counted multiples like 10s, 50s, s, etc. When graphs are compared side-by-side, consider scaling them to the same data range to make comparisons easier.
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