MAT1275CO/OL27 – Fall 2021

Instructor: Suman Ganguli

Class #20 Agenda (Fri Oct 15)

Class Info

Topics

  • “Imaginary” and complex numbers: i = sqrt(-1), complex numbers a + bi
  • Graphs of quadratic functions (parabolas)

To-Do After Class

  • Finish WebWork set: “SquareRootProperty” (due tonight – Friday Oct 15)
  • Work on “QuadraticFormula” and “Complex Numbers” (due Tues Oct 19 & Fri Oct 22, respectively)

Class #19 Agenda (Thurs Oct 14)

Class Info

Topics

  • Example: quadratic formula where b^2 – 4ac < 0 (Sec 9.3)
    • “Imaginary” and complex numbers: i = sqrt(-1), complex numbers a + bi

To-Do After Class

  • Finish WebWork set: “SquareRootProperty” (due tomorrow – Friday Oct 15)
  • Work on “Complex Numbers” and “QuadraticFormula” (due Tues Oct 19)

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