2-Var Stats Part 3 Practice

This means to predict a value within the range of the known data values.

This means to predict a value outside the range of the known data values.

Predicting the number of days to finish a book when you have read 40 pages is an example of:

Predicting the number of days to finish a book when you have read 300 pages is an example of:

The cost of a flight is related to the length of the flight by $$y=0.0954x+21.1$$ where x is distance in miles y is cost in dollars. What does the slope of the line represent?

The probability that a school wins their first game in the national college basketball tournament is related to the rank they have going into the tournament. This can be expressed by the equation $$y=-6x+101$$ where x is their rank (out of 16) and y is the percent chance they have of winning their first game. What does the slope of the line represent?

The height and weight of adults can be related by the equation $$y=50x-138$$ where x is height in feet and y is weight in pounds. What does the y-intercept of this function represent?

Economists have found that the amount of corruption in a country's government is correlated to the gross domestic product (GDP) per capita of that country. This can be modeled by $$y=1470\cdot1.05^x$$ where $$x$$ is the corruption score and $$y$$ is GDP per capita in dollars. Corruption scores range from 0 to 100 with 0 being highly corrupt and 100 being least corrupt. What does the $$y-intercept$$ of this function represent?

"The cost of a flight is related to the distance traveled. The cost can be modeled by the equation $$y=.144x+25.8$$ where x is distance in kilometers and y is cost in dollars. Using this model, what would be the cost of a flight that travels 1750 kilometers?"

Is this INTERPOLATION or EXTRAPOLATION?