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W ARM UP! Jan. 31, 2013

W ARM UP! Jan. 31, 2013. Question 1. What is the image of the point (-8, -24) after a dilation of 3?. Question 2. The diagram shows a kite ABCD. The diagonals cut at right angles and intersect at O. What is the length of the diagonal AC?. Question 3.

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W ARM UP! Jan. 31, 2013

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  1. WARM UP!Jan. 31, 2013

  2. Question 1 What is the image of the point (-8, -24) after a dilation of 3?

  3. Question 2 The diagram shows a kite ABCD. The diagonals cut at right angles and intersect at O.What is the length of the diagonal AC?

  4. Question 3 A ride in the cab costs .40 cents plus .15 cents per mile. Write an equation for traveling “x” miles in the cab.

  5. Question 4 What is the rule for translating a figure across the y axis?

  6. Time is up!!! Trade and Grade!

  7. ANSWERS • (-24, -72) • 21 • Y = .15x + 40 • Multiply each x coordinate by -1.

  8. Critical Thinking 1 A number of people have broken the sound barrier, either in a super-fast car, or in nice fancy planes. However, hundreds of years ago it was broken on horseback. How?

  9. ANSWER Many people who ride horses carry whips. They crack the whip while they ride the horse. When a whip is cracked, the tip travels faster than the speed of sound, which makes the loud snap. It actually creates a miniature sonic boom of sorts. The whip breaks the sound barrier, thus, it was broken on horseback.

  10. Critical Thinking 2 I've been drawn by the artists these days, and of old;Yet I'm seen only when all around me is cold.For most of the time you just live and ignore me;Then you gasp for me, stop for me, mutter below me.You might say, in surprise, I've been taken away,But it's true I've been with you, at least 'til today.When I leave you, you leave too!Who am I?

  11. ANSWER BreathEveryone draws breath, and it is seen on icy days.We breathe subconsciously, but might gasp or stop for breath. We mutter "under our breath" at times.We might say our breath is "taken away" but we have it as long as we live - until we "leave" this world!

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