Quadratic Function Joke

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A five is nothing. Watch out for the zeroes!

If Ken is to be believed (never a sure bet), then the function would be in the form of y = a(x - 5)² - 4. Since we don't know the zeroes, we don't know what a is. Conversely, since we don't know a, we don't know the zeroes. However, if a = 1, then the zeroes are x = 3 and x = 7.

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