HOMEROOM

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HOMEROOM
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BELL-WORK

• In the CW section of your notebook complete
• CW 4.2
• TB pg 602 1-3,21-22

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Materials Check
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HW 4.1

• HW with corrections due Monday!

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HW 4.1(e) Solutions

• 1.25 yd
• 20 mm
• 110 miles
• 1.2 miles
• yes
• no
• 31. Any length between 22.4 ft and 26.9 ft
• 33. 35.4 cm

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Quiz 4.1

• Take Home Quiz!
• Be sure to sign the honor code (write it on the
  top of your page if you cannot print it)
• Due Monday during Home-Room.
• Available on website!

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Guiding question

• What are two applications of the Pythagorean
  Theorem?

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Applications of the Pythagorean Theorem

• One very important application of the Pythagorean
  Theorem is that it can be used to find the
  distance between two points on the coordinate
  plane.

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Applications of the Pythagorean Theorem

• The distance between A(x1, y1) and B(x2, y2) is
  found using the formula

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Applications of the Pythagorean Theorem

• Find the distance between F(6, -9) and G(9, -4)
  (to the nearest tenth).

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Applications of the Pythagorean Theorem

• Find the distance between F(6, -9) and G(9, -4)
  (to the nearest tenth).

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Applications of the Pythagorean Theorem

• Find the distance between F(6, -9) and G(9, -4)
  (to the nearest tenth).

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Applications of the Pythagorean Theorem

• Find the distance between F(6, -9) and G(9, -4)
  (to the nearest tenth).
• d 5.8

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Applications of the Pythagorean Theorem

• The Anderson and McCready families decide to go
  to a concert together. The Andersons live 4 km
  west and 6 km north of the concert hall. The
  McCreadys live 5 km east and 2km south of the
  concert hall. How far apart do the two families
  live? Give your answer in simplest radical form.

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Applications of the Pythagorean Theorem

• Not only can we find the distance between 2
  points on the coordinate plane, we can also find
  the midpoint of any line segment.
• What do you think the midpoint of a line segment
  is?
• The midpoint of a line segment is the point that
  divides the segment into two equal parts.

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Applications of the Pythagorean Theorem

• The midpoint M, is calculated using the formula

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Applications of the Pythagorean Theorem

• Find the midpoint of the line joining F(6,-9) and
  H(9, -4).

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Applications of the Pythagorean Theorem

• Find the midpoint of the line joining F(6,-9) and
  H(9, -4).

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Applications of the Pythagorean Theorem

• Find the midpoint of the line joining F(6,-9) and
  H(9, -4).
• M (7½, -6½)

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Applications of the Pythagorean Theorem

• CD is a diameter of a circle. The coordinates of
  C are (-2,-3), and the coordinates of D are
• (-12,-5). Find the center of the circle.

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Who wants to answer the Guiding question?

• What are two applications of the Pythagorean
  Theorem?