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Thursday: Announcements. Test corrections must be complete by tomorrow morning (Friday) Retest Monday 7:40am or 4:00pm Extra Credit DUE Monday 1 st Unit 8 Quiz is Tuesday. Yesterday’s Meetings. Discussed Make-up work from Absences, Field Trips, etc Some students not making up work.

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Thursday announcements
Thursday: Announcements

  • Test corrections must be complete by tomorrow morning (Friday)

  • Retest Monday

    • 7:40am or 4:00pm

  • Extra Credit DUE Monday

  • 1st Unit 8 Quiz is Tuesday


Yesterday s meetings
Yesterday’s Meetings

  • Discussed Make-up work from Absences, Field Trips, etc

  • Some students not making up work.

  • District Policy (One Day + 1) for missed instruction. Makeup work always in the Green Folders, plus on Calendar!

  • Scheduling Recommendations for next year!! Please come talk with me about the choices. Scheduling process starts next week!


Possible classes
Possible Classes

Algebra Skills

Statistics/Data Analysis

AP Statistics

PAP/AP English

Advanced Quantitative Reasoning (AQR)

  • PreCalculus

    • 1st Semester Algebra

    • 2nd Semester Trig

  • Independent Math Studies


Yesterday s meetings1
Yesterday’s Meetings

  • Cell Phones/Headphones: None out after bell rings. Not even on your desk or lap.


Section 9 2

Section 9-2

Vertical Parabolas

Pages 620-625


Objectives
Objectives

  • You should be able to find graph vertical parabolas including:

    • Vertex Point

    • Axis of Symmetry (AOS)

    • Focus Point

    • Directrix Line

    • Length of Latus Rectum (LR)

  • Complete the Square to obtain vertex Format


What is a conic section
What is a conic section?

  • A conic is simply the intersection of a plane and a double-cone.

  • 4 common conics are the parabola, circle, ellipse, and hyperbola shown below:



Parabola
Parabola

  • A parabola is a set of points in a plane that are all the same distance from a given point called the focus and the same distance from a line called the directrix.

  • A parabola is formed when we slice through one end of a double cone an an angle.


Parabola1
Parabola

  • A parabola is a set of points in a plane that are all the same distance from a fixed line called the directrix and a fixed point not on the line called the focus .


Key concept
Key Concept

  • The distance from Vertex Point to Focus Point is “p”

  • This is also the same distance from Vertex Point to the Directrix Line


Vocabulary
Vocabulary

  • The perpendicular chord to the AOS is called the latus rectum(LR)

Latus rectum


When graphing you must label
When graphing you MUST label…

  • vertex

  • focus

  • directrix

  • axis of symmetry

  • endpoints of the latus rectum


Where to find them
Where to find them…

  • FOCUS: inside the parabola

  • DIRECTRIX: outside of the parabola

  • AOS: through the vertex, perpendicular to the directrix

  • FOCAL CHORD (latus rectum): inside of the parabola


Examples
Examples

  • Graph and find equation examples done in packet of notes together in class.


Homework
Homework

  • Finish examples in Packet of notes

  • WS 8-3 Vertical Parabolas


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