dilation

dialate 2,4 by a scale factor of 2

• 5,10

• 4,8

• 4,10

• 8,4

Tags

CCSS.8.G.A.3

if a shape is dilated by the scale factor 1/2 what happens to it

• it doubles

• it gets cut by third

• shrinks by 1/4

• it halfs

Tags

CCSS.8.G.A.3

Sarah drew a triangle on a piece of graph paper. The vertices of the triangle are at points A(2,3), B(4,1), and C(6,5).

She wants to dilate the triangle by a scale factor of 2 with respect to the origin.

Find the coordinates of point A'.

• (4,6)
• (1,2)
• (5,7)
• (3,5)

Tags

CCSS.8.G.A.3

Emily has a rectangle with vertices at points A(2,3), B(2,7), C(6,7), and D(6,3) on a coordinate plane.

She wants to dilate the rectangle by a scale factor of 3 with respect to the origin (0,0).

Find the coordinates of point D'.

• (18, 6)

• (18, 9)

• (6, 9)
• (9, 18)

Tags

CCSS.8.G.A.3

A triangle with the points A 2,2 point B 6,2 and point C 2,6 is dilated by the scale factor of 1/2 draw ABC'

Point A 10,20 is dilated by the scale factor of 3/1 what is coordinate of point A after the dilation

• (20, 30)
• (40, 80)
• (15, 25)
• (30, 60)

Tags

CCSS.8.G.A.3

what happens when you dilate a image with a scale factor above 1

• The image will be rotated.
• The image will remain the same size.
• The image will be reduced in size.
• The image will be enlarged or scaled up.

Tags

CCSS.8.G.A.3

With the points A(-4, -2) B(1, -3) C(2, -5) D(-1, 7). What are the new points if the scale factor of dilation is 3?

• New points after dilation with scale factor 3: A(-10, -5), B(2, -6), C(5, -12), D(-2, 18)
• New points after dilation with scale factor 3: A(-6, -3), B(4, -12), C(8, -20), D(-4, 28)
• New points after dilation with scale factor 3: A(-15, -9), B(0, -12), C(3, -20), D(-6, 24)
• New points after dilation with scale factor 3: A(-12, -6), B(3, -9), C(6, -15), D(-3, 21)

Tags

CCSS.8.G.A.3

With the points A(6, 2) B(-4, -4) C(-8, 12) D(2, -8). What are the new points if the scale factor of dilation is 1/2 ?

• A'(4, 2), B'(-3, -3), C'(-5, 8), D'(0, -5)
• A'(5, 3), B'(-3, -2), C'(-6, 9), D'(1, -6)
• A'(3, 1), B'(-2, -2), C'(-4, 6), D'(1, -4)
• A'(2, 1), B'(-1, -1), C'(-2, 6), D'(0, -2)

Tags

CCSS.8.G.A.3

If the scale factor is 3 the figure will be

• Three times larger than the original figure.
• The same size as the original figure.
• Twice as large as the original figure.
• Four times larger than the original figure.

Tags

CCSS.7.G.A.1