Dilations

A triangle has vertices with coordinates (2,0), (3, -1) and (-2,-5). If the triangle is dilated by a scale factor of 3, what are the coordinates of the vertices of the image?

• (5,3), (6,2), (1,-2)

• (6,0), (9,-3), (-6,-15)

• (2/3,0), (1,-1/3), (-2/3,-5/3)

• (-1,-3), (0,-4), (-5,-8)

Tags

CCSS.8.G.A.3

When the scale factor of a dilation is less than one, the dilation is a...

• Reduction

• Enlargement

Tags

CCSS.8.G.A.3

What is Dilation?

• Dilation means to enlarge or reduce a shape

• Dilation means to flip over a line

• Dilation means two figures that look alike

• Dilation means to make a shape smaller

Tags

CCSS.8.G.A.3

A scale factor of more than one means.....

• that the prime image will be larger than the pre-image.

• That the prime image will be the same as the preimage.

• That you need to subtract that amount off  of each side.

• That the prime image will be a reduction of the preimage.

Tags

CCSS.7.G.A.1

Solve the proportion.

• p=31.3

• p=308

• p=924

• p=532

Tags

CCSS.6.EE.B.7

Find missing side

• 5

• 7

• 9

• 11

Tags

CCSS.HSG.SRT.B.5

Dilate Point B by a scale factor of 3:

• (12,0)

• (12,12)

• (4,3)

• (0,12)

Tags

CCSS.8.G.A.3

Tell whether each transformation is a dilation. Explain.

• No, scale factor isn't the same.

• Yes, scale factor is the same

A dilation with a scale factor k>1 is called what?

Tags

CCSS.8.G.A.3

a dilation with a scale factor 0<k<1 is called what?

Tags

CCSS.8.G.A.3