WARM UP ANNOUNCEMENTS -Pick up your assigned calculator -Take out your HW to stamp.

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Presentation transcript:

WARM UP ANNOUNCEMENTS -Pick up your assigned calculator -Take out your HW to stamp

HOMEWORK QUESTIONS?

#5 Rotations

Vocabulary! Rotation: turning a figure by a set angle Center of Rotation: the point that a figure is turned about

EXAMPLE 1: R270o: DABC: A(6,2) B(-3,4) C(8,5)

EXAMPLE 2. R90o: DXYZ: X(3,-4) Y(7,2) Z(-6,5)

EXAMPLE 3. R180o: ABCD: A(5,9) B(8,9) C(8,4) D(5,4)

BRAIN BREAK

Homework #5 Rotations

“POP” QUIZ! Individual quizzes Name & Number Show ALL work Open-note: can only use your own ISN Use back of page & graph sheet if you need more room No bathroom trips during quiz time Flip over when done

Quiz Answers M = 𝑥 1 + 𝑥 2 2 , 𝑦 1 + 𝑦 2 2 (1 point) d = ( 𝑥 2 − 𝑥 1 ) 2 + ( 𝑦 2 − 𝑦 1 ) 2 (1 point) Tells how large or small to make a figure, represented by “r” (1 point) A transformation representing a flip of a figure; an isometry (1 point) M = (4,1) (1/2 point) d = 10 (1/2 point) A. G’(-1,8) E’(0,5) O’(0,6) (1 point) B. G’(9,15) E’(12,6) O’(12,9) (1 point) C. G’(5,3) E’(2,4) O’(3,4) (1 point)

WORK TIME Unit 3 Test Corrections – Friday 3/27 Unit 4 Homework Packet – Tuesday 3/31 Midterm Notebook Check – Wed. 3/25 (1st Period), Fri. 3/27 (3rd Period), Mon. 3/30 (4th Period) TOC updated (Yellow Tab) All notes glued/taped in AND filled out (even from when you were absent) Page numbers Vocabulary & Formulas (Purple Tab) Data Trackers (Green Tab) Midterm – Next week! Wed. 3/25 (1st Period), Fri. 3/27 (3rd Period), Mon. 3/30 (4th Period) Late or Missing Work – Friday 3/27 Late – anything from Unit 3 will be accepted until Friday 10/17 for 70% Anything else missing – will be accepted for 50% Check yellow bin for extra copies or print a new copy from my website.

Exit Ticket Use the triangles to the right to find the coordinates needed to solve the following: Rotate DQRS 270o. CHALLENGE! Rotate DQRS 270o, then translate it by the rule (x+1, y+4).

BRAIN BREAK