Act#8 - Independent & Dependent Variables in Math

Front

What is an independent variable?

Back

An independent variable is a variable that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What is a dependent variable?

Back

A dependent variable is a variable that depends on other factors; it is what is measured in an experiment.

Front

In a mathematical equation, what does the x-axis represent?

Back

The x-axis represents the horizontal number line in the coordinate plane.

Front

In the equation y = mx + b, what does 'm' represent?

Back

In the equation, 'm' represents the slope of the line, which indicates the rate of change.

Front

If the number of students in a class increases, and the number of treats brought increases as well, which variable is independent?

Back

The number of students is the independent variable.

Front

What is the relationship between independent and dependent variables?

Back

The independent variable is manipulated to observe its effect on the dependent variable.

Front

In the context of a graph, what does the y-axis represent?

Back

The y-axis represents the vertical number line in the coordinate plane.

Front

If 'p' represents the number of pizzas delivered and 'm' represents money earned, which is the dependent variable?

Back

The dependent variable is 'm' (money earned), as it depends on the number of pizzas delivered.

Front

What is the purpose of identifying independent and dependent variables in an experiment?

Back

Identifying these variables helps to understand the cause-and-effect relationship in the experiment.

Front

In a function, if the output changes when the input changes, what type of variable is the output?

Back

The output is the dependent variable.