Intro to Computing - How Data is Represented
If you double the resolution of an image from 640 x 480 to 1280 x 960, how does the total number of pixels change?
If you double the resolution of an image from 640 x 480 to 1280 x 960, how does the total number of pixels change?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Calculate original total pixels
Original pixels = 640 x 480 = 307,200 pixels.Step 2: Calculate new total pixels
New pixels = 1280 x 960 = 1,228,800 pixels.Step 3: Compare new and original pixels
1,228,800 ÷ 307,200 = 4, so total pixels quadruple.Final Answer:
It quadruples -> Option AQuick Check:
Doubling width and height quadruples pixels [OK]
Quick Trick: Doubling width & height quadruples pixels [OK]
Common Mistakes:
- Thinking doubling resolution doubles pixels
- Ignoring multiplication effect on total pixels
- Confusing resolution with file size
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