Unit 3: Review (Algebra 1)

Front

What is the slope of a line of best fit?

Back

The slope represents the rate of change of the dependent variable with respect to the independent variable. In a real-world context, it indicates how much the dependent variable increases or decreases for each unit increase in the independent variable.

Front

What does a positive slope indicate in a graph?

Back

A positive slope indicates that as the independent variable increases, the dependent variable also increases.

Front

What does a negative slope indicate in a graph?

Back

A negative slope indicates that as the independent variable increases, the dependent variable decreases.

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional plane.

Front

What does a nonlinear association in a scatter plot mean?

Back

A nonlinear association means that the relationship between the variables cannot be accurately represented by a straight line.

Front

What is the correlation coefficient?

Back

The correlation coefficient is a statistical measure that describes the strength and direction of a relationship between two variables, ranging from -1 to 1.

Front

What does a correlation coefficient of 0 indicate?

Back

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

Front

How do you find the line of best fit?

Back

The line of best fit can be found using methods such as least squares regression, which minimizes the distance between the data points and the line.

Front

What is the formula for a linear equation?

Back

Front

What is the y-intercept in a linear equation?

Back