Warm – up #3 1. Test for Symmetry: xy = 4 y–axis(–x)(y) = 4 NO! x–axis(x)(–y) = 4 NO! Origin(–x)(–y) = 4 YES! So it’s symmetric about the origin  –xy.

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Presentation transcript:

Warm – up #3 1. Test for Symmetry: xy = 4 y–axis(–x)(y) = 4 NO! x–axis(x)(–y) = 4 NO! Origin(–x)(–y) = 4 YES! So it’s symmetric about the origin  –xy = 4  xy = 4

Homework Log Fri 11/20 Lesson 4 – 3 Learning Objective: To find everything about ellipse Hw: #404 Pg – 25 odd (find foci on 1 – 11)

11/3/15 Lesson 3 – 2 Difference Quotients & Function Graphs Day 2 Advanced Math/Trig

Learning Objective To graph ellipse To find vertices & co-vertices To find foci To write equation of ellipse

Standard Equation of Ellipse

Graph

Graph

Graph

Graph But original equation isn’t an ellipse

Graph

Write an Equation of the Ellipse Shown 6. (0, 6) (0, –6) (3, 0)(–3, 0)

Write an Equation of the Ellipse Shown 7. (–5, 0)(5, 0) (0, –1) (0, 1)

Ticket Out the Door

Homework #404 Pg – 25 odd (find foci on 1 – 11)