EE.9 Review

Front

What is an independent variable?

Back

An independent variable is the variable that is changed or controlled in a scientific experiment to test its effects on the dependent variable. In the context of studying, it is the factor you manipulate, such as 'Time spent studying'.

Front

What is a dependent variable?

Back

A dependent variable is the variable that is measured and affected in an experiment. It depends on the independent variable. For example, in the study of time spent studying and test scores, the test score is the dependent variable.

Front

What does the equation y = mx + b represent?

Back

This is the slope-intercept form of a linear equation, where 'm' is the slope and 'b' is the y-intercept. It describes a straight line on a graph.

Front

What is the slope in a linear equation?

Back

The slope is a measure of the steepness of a line, represented by 'm' in the equation y = mx + b. It indicates how much y changes for a change in x.

Front

What does the y-intercept represent in a graph?

Back

The y-intercept is the point where the line crosses the y-axis. It represents the value of y when x is 0.

Front

How do you find the total earned from a car wash if each car washed earns $5?

Back

Use the equation y = 5x, where y is the total money earned and x is the number of cars washed.

Front

What is a linear equation?

Back

A linear equation is an equation that makes a straight line when graphed. It can be written in the form y = mx + b.

Front

What does it mean to multiply a variable by a constant?

Back

Multiplying a variable by a constant means to scale the variable's value by that constant. For example, if x = 3 and you multiply by 5, the result is 15.

Front

What is the rule for the table if it states to multiply the number of days by 7 and add 1?

Back

The rule can be expressed as y = 7x + 1, where y is the output and x is the number of days.

Front

What is the purpose of a table in mathematics?

Back

A table organizes data in rows and columns, making it easier to analyze relationships between variables.