Understanding Scale Factors and Proportions

This lesson covers the concept of unit rate as a scale factor, using examples like a game icon, an application icon, the flag of Colombia, a family portrait, and a dollhouse window. The lesson explains how to determine proportionality and scale factors through practical exercises, emphasizing the importance of using mathematical vocabulary and checking for constants.

What is the primary focus of lesson 17?

• Exploring algebraic equations

• Understanding the concept of scale factor

• Learning about geometric shapes

• Studying historical events

In the example of Jay's game, what was the purpose of creating a distinctive icon?

• To make the game more challenging

• To help players easily identify the game

• To reduce the game's popularity

• To increase the game's difficulty

How can you determine if two images are proportional?

• By counting the number of pixels

• By measuring their weight

• By comparing their colors

• By checking if they have the same scale factor

What is another term for scale factor?

• Perimeter

• Area

• Volume

• Unit rate

What is the scale factor used to reduce the app icon size?

• 1/5

• 1/3

• 1/2

• 1/4

How is the flag of Colombia divided in the lesson?

• Into five sections

• Into two sections

• Into four sections

• Into three sections

Why is it important to scale down graphics for app icons?

• To change their shape

• To increase their resolution

• To fit them into a smaller space

• To make them more colorful

What is the scale factor used to downsize the family portrait?

• 1/4

• 1/10

• 1/2

• 1/8

What is the diameter of the dollhouse window after scaling?

• 2 inches

• 3 inches

• 4 inches

• 5 inches

What is the result of multiplying a number by a fraction less than one?

• The number increases

• The number stays the same

• The number becomes negative

• The number decreases