Warm-Up: April 10, 2015. Homework Questions? Geometry in the Coordinate Plane Investigation 8C Advanced Integrated Math I.

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Presentation transcript:

Warm-Up: April 10, 2015

Homework Questions?

Geometry in the Coordinate Plane Investigation 8C Advanced Integrated Math I

You-Try #2

You-Try #3

You-Try #4

Assignment Page 660 #5, 7, 8

Page 660 See textbook for #7

Warm-Up: April 13, 2015 Copy and complete the table below.

Homework Questions?

Midpoint and Distance Formulas Section 8.11 Advanced Integrated Math I

You-Try #1

You-Try #2

Minds in Action

Sasha: Don’t we need three points to make a triangle so we can use the Pythagorean Theorem? Derman: Watch! I’ll make a third point.

Minds in Action

Distance Formula

You-Trys

Midpoint Formula

You-Trys

Assignment Read Section 8.11 (pages ) Page 666 #4, 8, 10, 11, 12

Page 666

Warm-Up: April 14, 2015

Homework Questions

Parallel Lines and Collinear Points Section 8.12 Advanced Integrated Math 1

You-Try (with partner)

Theorem 8.4

Think-Pair Share

Example

You-Trys Decide whether each set of three points are collinear.

Assignment Read Section 8.12 (pages ) Page 672 #5-9

Page 672

Warm-Up: April 15, 2015

Homework Questions?

Perpendicular Lines Section 8.13 Advanced Integrated Math I

Perpendicular Lines

Minds in Action Tony wonders whether he has just seen a special case. Tony: Hey Sasha, suppose the lines don’t intersect at the origin. Is Theorem 8.5 still true? Sasha: Well, Theorem 8.5 doesn’t say anything about the lines having to intersect at the origin. But I agree that we have proved one direction of the theorem only for lines like that. Let’s try to prove it for lines that could intersect anywhere. Tony: Let’s try to avoid a lot of work. Why don’t we just try translating?

Minds in Action Sasha: That should work. The proof we came up with in the warm- up didn’t really use the fact that the lines were through the origin. Look at this diagram:

Minds in Action

You-Try #9

You-Try #10

You-Try #11

Assignments Read Section 8.13 (pages ) Page 677 #5-9 Page 679 #1-6 (Investigation 8C Reflection) Page 680 #1-13 (Chapter 8 Review)

Page 677