Identifying Independent and Dependent Variables

This video tutorial explains the concepts of independent and dependent variables, using a real-world example of a babysitting scenario. It clarifies how to identify these variables, emphasizing that the independent variable (hours worked) affects the dependent variable (money earned). The tutorial also addresses common misunderstandings, reinforcing that the dependent variable does not influence the independent variable. By the end, viewers will understand how to distinguish between these variables in various contexts.

What is a variable in the context of math and science?

• A type of mathematical operation

• A specific scientific formula

• A number or quantity that varies in different situations

• A symbol representing a fixed number

Which variable generally represents the independent variable?

• w

• y

• x

• z

In the babysitting scenario, what does 'h' represent?

• Days worked

• Hours worked

• Money earned

• Rate per hour

What determines the amount of money Deanna earns in the scenario?

• The type of work

• The rate per day

• The number of days

• The number of hours worked

Which statement is true about dependent variables?

• They change in response to another variable

• They remain constant

• They influence other variables

• They are always represented by x

What is incorrect about the relationship between independent and dependent variables?

• Dependent variables change in response to independent variables

• Dependent variables control the independent variables

• Independent variables influence the dependent variables

• Independent variables are usually the cause in a scenario

If Deanna works more hours, what happens to the money she earns?

• It becomes zero

• It increases

• It stays the same

• It decreases

What does 'y' typically represent in variable scenarios?

• Constant value

• Dependent variable

• None of the above

• Independent variable

Why is it impossible for the money earned to determine the hours worked?

• Because money is always constant

• Because payment is after work

• Because hours are irrelevant

• Because the work is voluntary

What must Deanna do first to earn her payment?

• Negotiate her pay

• Work the designated hours

• Calculate her earnings

• Receive her schedule