Dilations Algebraic Rule

Is this an enlargement or a reduction?

• Enlargement

• Reduction

Is this an enlargement or a reduction?

• Enlargement

• Reduction

Which of the following algebraic rules represents an enlargement?

• (x, y) --> (3x, 3y)

• (x, y) --> (0.5x, 0.5y)

• (x, y) --> (0.75x, 0.75y)

• (x, y) --> (0.999x, 0.999y)

• (x, y) --> (5x, 5y)

Is this an enlargement or a reduction?

• Enlargement

• Reduction

What is the algebraic rule for this transformation?

• (2x, 2y)

• (1/2x, 1/2y)

• (x - 2, y + 2)

• (x - 1, y + 2)

Pentagon FGHIJ was dilated to create a larger pentagon, F'G′H′I'J′. Which rule best represents the dilation that was applied to pentagon FGHIJ to create pentagon F'G′H′I'J′?

• (2/3 x, 2/3 y)

• (3/2 x, 3/2 y)

• (x + 3, y + 2)

• (x + 2, y + 3)

The rule for dilation is  
(x, y) --> _

• (kx, ky)

• (x, -y)

• (-x, y)

• (x+a, y+b)

What is the algebraic rule for the transformation shown?

• (x, y) -> (1/2x, 1/2y)

• (x, y) -> (1/5x, 1/5y)

• (x, y) -> (5x, 5y)

• (x, y) -> (x - 4, y - 4)

Which is an example of the algebraic rule for a DILATION?

• (3x, 3y)

• (x+3, y-2)

• (-x, -y)

• (y, -x)

A square has sides of 6 inches and is dilated to form a square that has sides of 24. What is the scale factor?

• 1/4 because 6/24 = 1/4

• 4 because 24/6 = 4

• 30 because 24 + 6 = 30

• No way to know with this information.