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Day 4: Section 2.1 The coordinate system and Circles

MTH 122 401 and 402 - Fall 2026

MTH 122 · COLLEGE ALGEBRA · DAY 4

Section 2.1 The coordinate system and Circles

✅ To-Do This Day

Learning Objectives
  • Plot ordered pairs in a Cartesian coordinate system.
  • Graph equations by plotting points.
  • Graph equations with a graphing utility.
  • Find x-intercepts and y-intercepts.
  • Use the distance formula.
  • Use the midpoint formula.
  • Derive the equation of a circle centered at the origin.
  • Write equations of circles centered at the origin in standard form.
  • Write equations of circles not centered at the origin.
  • Graph circles centered at the origin.
  • Graph circles not centered at the origin.

🎬 Day 4 Videos

1. The Coordinate Plane

2. Circles

📚 Required Reading

Chapter 2 Section 1

✅ Completed Notes (Reference)

📄 Day 4 Completed Guided Notes

Day 4: Section 2.1 The coordinate system and Circles - MTH122 401