1 of 21

Guess the Age

Unit 2: Linear Functions as Models

2 of 21

As you look at images of the celebrities, do your best to guess their ages. Record your guesses in your notebook.

3 of 21

Joe Biden

4 of 21

Meb Keflezighi

5 of 21

Pope Francis

6 of 21

Serena Williams

7 of 21

Ellen DeGeneres

8 of 21

Mick Jagger

9 of 21

Jennifer Lawrence

10 of 21

Donald Trump

11 of 21

Oprah Winfrey

12 of 21

Stephen Colbert

13 of 21

Hillary Clinton

14 of 21

Aziz Ansari

15 of 21

Barack Obama

16 of 21

Bob Dylan

17 of 21

Denzel Washington

18 of 21

Julia Louis-Dreyfus

19 of 21

Michelle Obama

20 of 21

Make a scatterplot in your notebook. Label the horizontal axis “Actual Age” and the vertical axis “Guessed Age”.�

​

21 of 21

  1. If you were a perfect guesser, what would your graph look like?�
  2. Draw the line that would represent perfect guesses. What is the equation of this line?�
  3. Compare your graphs to those in your group. Who is the best guesser? Work together to come up with a mathematical model for determining the best guesser. Use your method to rank the guessers in your group from best to worst.