Unit 4 TEST Review

Front

What is a system of equations?

Back

A set of two or more equations with the same variables that can be solved together.

Front

How do you represent a combined total in an equation?

Back

By using addition to combine the variables, e.g., x + y = total.

Front

What does it mean if one variable is '4 times' another?

Back

It means that the value of one variable is four times the value of the other, represented as y = 4x.

Front

What is correlation in statistics?

Back

Correlation measures the relationship between two variables, indicating how one may change in relation to the other.

Front

What does a 'None' correlation indicate?

Back

It indicates that there is no relationship between the two variables.

Front

What is an absolute value function?

Back

A function that describes the distance of a number from zero on the number line, represented as y = |x|.

Front

How do you solve for a variable in an equation?

Back

Isolate the variable on one side of the equation using inverse operations.

Front

What does it mean if the sum of two ages is a specific number?

Back

It means that when you add the two ages together, they equal that specific number.

Front

How do you express 'one less than' in an equation?

Back

By subtracting 1 from the variable, e.g., if x is the variable, it is expressed as x - 1.

Front

What is a scatter plot?

Back

A graph that shows the relationship between two numerical variables using dots to represent data points.