Unit 4 Review

Which is the correct way to find the scale factor?

If the scale factor is greater than 1, than the image will be a ...

• enlargement

• reduction

If the scale factor is less than 1, than the image will be a ...

• enlargement

• reduction

Which of the following is another name for the constant of dilation?

• enlargement factor

• scaling constant

• shifting vector

• multiplicative factor

When two variables are proportional which of the following is the constant?

• their sum

• their ratio

• their product

• their difference

The variables x and y are proportional. If x = 10 and y = 4, then which of the following is the value of x when x = 35?

• 14

• 21

• 24

• 28

• B

• C

• D

• E

The total cost for tickets to a movie is proportional to the number of people going to the movie. If tickets cost $47.00 for four people, what is the total cost for seven people?

• $94.00

• $70.50

• $82.25

• $58.75

• (16, 4)

• (9, 20)

• (-1, 12)

• (5, 20)

• (7, 4)

• (8, 14)

• (2, 5)

• (6, 9)