Contents
Class Info
- Date: Thurs Oct 21, 10a-11:40a
- Meeting Info: Blackboard Collaborate Ultra
- guest login
- dial-in: 571-392-7650 (PIN: 687 683 9275)
Topics
- Graphs of quadratic polynomials (OpenStax: Sections 9.6 & 9.7)
- Parabolas – basic shape, the vertex, the y-intercept, the x-intercepts
- the zeroes (the “roots”) of a quadratic polynomial = x-intercepts of the corresponding parabola!
- “Transformations” (vertical & horizontal shifts) of parabolas
To-Do After Class
- Join peer-led tutoring session with Nojm Ahmed (12-1p via Zoom)
- See also the Math Dept’s drop-in online tutoring schedule!
- Finish WebWork set: “ComplexNumbers” (due Fri Oct 22)
- Start on WebWork sets re parabolas: “ParabolaLab”, “ShiftingParabolas”, “ParabolaVertices-CtS” (due Thurs Oct 28)
Here is the Desmos graph for the example we covered in class this week (y = x^2 – 6x – 3):