.I understand the sarcasm of functions such as:
| y = x - x | means that we are out of milk since we've emptied out only 2 quarts. | |
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| y = 3x | means that her clothes are 3x more expensive than mine. | |
| y = x - 1 | means that Mom lost a pound after she cleaned the garage. | |
| y = x | means that my sister should get as much allowance as I do. | |
| y = 2x | means that Dad cooks twice as much food on the weekend as Mom does during the week. | |
| y = x + 1 | means that I became one year older on my birthday. | |
| y = x | means that I am an only child. | |
| y = Why? | means, “Why is math so easy for me?” |
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