Arithmetic Sequences & Linear Functions

This Unit’s Key Question: Are payday loans fair?

Day 1: Arithmetic Sequences (Recursive)

Lesson Key Question: How do payday loans work?

Content: Arithmetic Sequences | Common Difference | Recursive Notation

Day 2: Arithmetic Sequences (Explicit)

Lesson Key Question: Are payday loans misleading?

Content: Arithmetic Sequences | Explicit Formula

Day 3: Slope-Intercept Form

Lesson Key Question: Why do payday loan stores concentrate in low-income neighborhoods?

Content: Linear Functions | Slope-Intercept Form | Interpreting Slope & Intercept

Image adapted from The Texas Tribune

Day 4: Calculating Equations From Points

Lesson Key Question: Why do payday loan stores sometimes discourage paying off their loans?

Content: Slope Formula | Calculating Slope & Intercept From Points

Day 5: Parallel & Perpendicular Lines

Lesson Key Question: Why do payday loans present their term lengths in odd ways?

Content: Parallel Lines | Perpendicular Lines | Negative Reciprocal Slopes

Day 6: Point-Slope Form

Lesson Key Question: Why do payday loan stores sometimes discourage paying off their loans? (Pt. 2)

Content: Linear Functions | Point-Slope Form