Line of Best Fit

Front

What is the equation of the line of best fit?

Back

y = -2x + 10

Front

What is a line of best fit used for?

Back

To make predictions.

Front

Use the trend line to predict how many chapters would be in a book with 180 pages.

Back

18 chapters.

Front

What is the y-intercept in the equation y = mx + b?

Back

The y-intercept is the value of y when x = 0.

Front

What is the equation of the line of best fit for the given data?

Back

y = \frac{1}{2}x + 3

Front

What does the slope of the line of best fit represent?

Back

The slope represents the rate of change between the two variables.

Front

How do you find the line of best fit using a scatter plot?

Back

By drawing a line that best represents the trend of the data points.

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two variables.

Front

What does a positive slope indicate in a line of best fit?

Back

A positive slope indicates that as one variable increases, the other variable also increases.

Front

What does a negative slope indicate in a line of best fit?

Back

A negative slope indicates that as one variable increases, the other variable decreases.