8th Math Q2 9 Weeks Exam Part 2Lee

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot, showing the trend of the data points.

Front

How do you determine the line of best fit from a scatter plot?

Back

You can determine the line of best fit by visually inspecting the scatter plot and drawing a line that minimizes the distance between the line and all the data points.

Front

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

Back

The slope of a line of best fit represents the rate of change between the two variables in the dataset.

Front

What is the purpose of using a line of best fit?

Back

The purpose of using a line of best fit is to make predictions about one variable based on the value of another variable.

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 axis.

Front

What does it mean if the points on a scatter plot are closely clustered around the line of best fit?

Back

If the points are closely clustered around the line of best fit, it indicates a strong correlation between the two variables.

Front

What is the equation of a line in slope-intercept form?

Back

The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

How can you estimate a value using a line of best fit?

Back

You can estimate a value by finding the corresponding y-value on the line of best fit for a given x-value.

Front

What is the y-intercept in a linear equation?

Back

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

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.