8th - 3/3

• Mathematics

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Friday!!!!

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What are you looking forward to this weekend?

Fun Fact #1 : 

February, March, and November always start on the same day of the week unless it's a leap year.

Skip count by 12

Put the numbers in order.

96

12

84

144

24

48

132

72

120

36

60

108

Five and five-tenths

Nine-hundredths

0.09

0.090

5.50

5.500

0.050

0.0050

55.0

0.9

0.900

1.090

GHI                    G'H'I'

G(4, 3)            G' (8, 6)

H(-1, 2)            H' (-2, 4)

I (5, -5)             I'  (10, -10)

What is my scale factor?

1. 3
2. 4
3. 1/2
4. 2

Enlargement or reduction?

1. Reduction
2. Enlargement

Scale factor = 2

Algebraic Rule is....

1. (x, y) --> (1/2x, 1/2y)
2. (x, y) --> (x, y)
3. (x, y) --> (2x, 2y)
4. (x, y) --> (3x, 3y)

Identify an algebraic rule that will stretch a figure horizontally, but shrink it vertically.

1. (x, y) --> (1/2x, 1/2y)
2. (x, y) --> (2x, 1/2y)
3. (x, y) --> (2x, 3y)
4. (x, y) --> (1/2x, 3y)

Identify an algebraic rule that will shrink a figure horizontally, but stretch it vertically.

1. (x, y) --> (1/2x, 1/2y)
2. (x, y) --> (2x, 1/2y)
3. (x, y) --> (2x, 3y)
4. (x, y) --> (1/2x, 3y)

Match the algebraic rule to the verbal description.

Translation 2 to the left, 1 up

Reflection across the x-axis

Rotation 90 degrees clockwise

Dilation with a scale factor of 1/2

Reflection across the y axis

Rotation 180 degrees

Dilation with a scale factor of 3

(x, y) -->(y, -x)

(x, y) --> (1/2x, 1/2y)

(x, y) --> (x + 2, y + 1)

(x, y) -->(-x, -y)

(x, y) --> (x, -y)

(x, y) --> (3x, 3y)

(x, y) --> (-x, y)

In a ROTATION, the preimage and image are

1. similar
2. congruent

In a REFLECTION, the preimage and image are

1. similar
2. congruent

In a TRANSLATION, the preimage and image are

1. similar
2. congruent

In a DILATION, the preimage and image are

1. similar
2. congruent