M7HN/Prealgebra- Independent and Dependent Variables

Front

What are independent variables?

Back

Independent variables are the variables that are changed or controlled in an experiment to test their effects on the dependent variable. They are often referred to as 'input' values.

Front

What are dependent variables?

Back

Dependent variables are the variables that are measured or observed in an experiment. They depend on the independent variable.

Front

In the equation m=75d, which variable is dependent?

Back

m (the amount of money Sarah will raise) is the dependent variable because it depends on the distance d.

Front

In the equation C=5+1.5m, what does C represent?

Back

C represents the total cost of renting movies, which is dependent on the number of movies rented (m).

Front

What is the domain in a function?

Back

The domain is the set of all possible input values (independent variables) for a function.

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What is the range in a function?

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The range is the set of all possible output values (dependent variables) that result from using the function.

Front

In the equation t=3s+5, what does s represent?

Back

s represents the number of students in the class, which is the independent variable.

Front

What is an example of a real-life dependent variable?

Back

The height a ball bounces is a dependent variable that depends on the height from which it is dropped.

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What is an example of a real-life independent variable?

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The number of hours studied is an independent variable that can affect test scores.

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What does it mean for a variable to be controlled in an experiment?

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A controlled variable is one that is kept constant to ensure that the results are due to the independent variable.