7.1.4 Journal: Arithmetic Sequences
Algebra I (S4142005)
Points possible: 20
View the video found on page 1 of this journal activity.
Using the information provided in the video, answer the questions below.
Show your work for all calculations.
The Students' Conjectures: Two students, Ernest and Denise, are training for a swim half-
marathon in 10 weeks, and they disagree about their training schedule. If they follow Ernest's
suggested training schedule, will they be ready to swim 5 km in time for the half-marathon?
Complete the table to summarize each student’s suggested training schedule. (2 points: 1
point for each row of the chart)
Do the distances they swim every week make an arithmetic sequence? Why? (1 point)