Algebra Vocabulary

Front

What is the correlation coefficient?

Back

The correlation coefficient (denoted as r) is a statistical measure that describes the strength and direction of a relationship between two variables. It ranges from -1 to 1.

Front

What does a correlation coefficient of r ≈ 0.92 indicate?

Back

A correlation coefficient of r ≈ 0.92 indicates a strong positive linear relationship between the two variables.

Front

What does a correlation coefficient of r ≈ -0.95 indicate?

Back

A correlation coefficient of r ≈ -0.95 indicates a strong negative linear relationship between the two variables.

Front

What does a correlation coefficient of r ≈ 0 indicate?

Back

A correlation coefficient of r ≈ 0 indicates no linear relationship between the two variables.

Front

What is an ordered pair in the context of functions?

Back

An ordered pair is a pair of numbers (x, y) that represents a point on a graph, where x is the input and y is the output of a function.

Front

How do you find f(4) in a function?

Back

To find f(4), substitute 4 for x in the function's equation and solve for y.

Front

What does it mean if an equation has 'no solution'?

Back

An equation has 'no solution' if there are no values that satisfy the equation, often resulting in a contradiction.

Front

What is the rate of change in a graph?

Back

The rate of change describes how much one quantity changes in relation to another quantity, often represented as the slope of a line.

Front

What does a negative rate of change indicate?

Back

A negative rate of change indicates that as one variable increases, the other variable decreases.

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, calculated as the change in y divided by the change in x (rise/run).