Trend Lines (Line of Best Fit)

Front

What is the equation of the line of best fit?

Back

y = -2x + 10

Front

Given that the slope is 2/3 and the y-intercept is -3, what is the equation of the line?

Back

y = 2/3x - 3

Front

Which of the following lines represents the line of best fit for the scatter plot?

Back

A

Front

What type of correlation do you think there is between Time Spent Watching TV & Grades?

Back

Negative correlation

Front

What are the coordinates of the outlier?

Back

(9,1)

Front

What does a positive correlation indicate?

Back

As one variable increases, the other variable also increases.

Front

What does a negative correlation indicate?

Back

As one variable increases, the other variable decreases.

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 does the slope of a line represent?

Back

The slope represents the rate of change of y with respect to x.

Front

How do you identify an outlier in a scatter plot?

Back

An outlier is a point that is significantly distant from the other points.