On this graph, what do the independent and dependent variables represent?
The independent variable represents the lead actor's pay, and the dependent variable represents profit of the movie.
What term is used to describe the red line on the graph?
Line of best fit.
What needs to be true of a line of best fit?
Answers vary; encourage students to discuss that a line of best fit should include equal distribution of points around the line and should follow the trend of the data.
Is a correlation reflected in the data? If so, is it positive or negative? How do you know?
A positive correlation is reflected. Possible explanation: as lead actor pay increases, the profit of the movie increases.
Will the slope of the line be positive or negative? How do you know?
Positive, because the line is increasing from left to right.
Look at points A and B. What are their coordinates?
What is the slope of the line? How do you know?
Using point A and the slope, what is the y-coordinate of the y-intercept of the line? How do you know?
|ASSESS READINESS||MISCONCEPTIONS||WARM UP||FOCUS||EXTEND||FINISH|