Bird
0
0

If the width and height of an image are both tripled, how does the total number of pixels change?

medium📝 Analysis Q5 of 15
Intro to Computing - How Data is Represented
If the width and height of an image are both tripled, how does the total number of pixels change?
AIt increases by 3 times
BIt increases by 6 times
CIt increases by 9 times
DIt remains the same
Step-by-Step Solution
Solution:

  1. Step 1: Understand pixel count calculation

    Total pixels = width x height.

  2. Step 2: Calculate new pixel count

    If width and height are tripled, new pixels = (3 x width) x (3 x height) = 9 x (width x height).

  3. Final Answer:

    It increases by 9 times -> Option C

  4. Quick Check:

    Tripling both dimensions multiplies pixels by 9 [OK]
Quick Trick: Tripling width and height multiplies pixels by 9 [OK]
Common Mistakes:
  • Multiplying by 3 instead of 9
  • Adding dimensions instead of multiplying
  • Assuming pixel count stays constant

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More Intro to Computing Quizzes
How Data is Represented - Data compression basics - Quiz 7medium How Data is Represented - How audio and video are digitized - Quiz 7medium How Files and Folders Organize Data - File types and associations - Quiz 4medium How Hardware Works - Output devices (monitor, printer, speaker) - Quiz 13medium How Hardware Works - Output devices (monitor, printer, speaker) - Quiz 4medium How Hardware Works - Storage devices (HDD, SSD) - Quiz 13medium How Software Works - Software updates and patches - Quiz 9hard How the Internet Works - Why the internet changed everything - Quiz 5medium How the Internet Works - How web browsers request pages - Quiz 15hard What is Computing - What a computer does (input, process, output, store) - Quiz 5medium