CORRECTED 8th grade Math STAAR TEKS 8.3C Scale Factor and Dilation

Question 1

What scale factor was used to create PQRS from ABCD?

Accepted Answer

2

Question 2

Rectangle ABCD is a dilation of WXYZ. What scale factor was used?

Accepted Answer

2.5

Question 3

What are the new coordinates of E' if a scale factor of 5 is applied?

Accepted Answer

E' (-10, -20)

Question 4

Trapezoid EFGH is a dilation of trapezoid ABCD. What scale factor was used to form BC?

Accepted Answer

1/6

Question 5

What scale factor was used to dilate Circle B to form Circle C?

Accepted Answer

9

Question 6

If a scale factor of one half is applied to L(6,4), M(3,8) and N(2,10) what would be M'?

Accepted Answer

M'(1.5, 4)

Question 7

If the figure was dilated by a scale factor of ¾, what would be C'?

Accepted Answer

C'(5.25, 3)

Question 8

What scale factor was used to dilate ABCD from PQRS?

Accepted Answer

0.5

Question 9

What scale factor was used in this dilation?

Accepted Answer

3

Question 10

If EJBX was dilated by a scale factor of 3, what would be B'?

Accepted Answer

B' (9, -6)

Question 11

An architect used the purple shape to create the green shape. What scale factor was used?

Accepted Answer

4

Question 12

If a scale factor of ¼ was applied to Circle B, what is its new diameter?

Accepted Answer

1.75 cm

Question 13

A 10 x 7 rectangle was dilated by a scale factor of 4. What are its new dimensions?

Accepted Answer

40 in X 28 in

Question 14

What scale factor was used to reduce the larger rectangle?

Accepted Answer

0.8

Question 15

What are the new vertices if this shape was tripled?

Accepted Answer

(-3, -3); (6, -3); (6, 9)

Questions 15