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Let a be the smallest integer satisfying the inequality x^2 - 15 < 2x, and let b be the largest integer satisfying the same inequality. What is b-a?

 Jun 27, 2020
 #1
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The largest integer is 6, and the smallest integer is -3, so the answer is 6 - (-3) = 9.

 Jun 27, 2020
 #2
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Sorry, but it says that its wrong.

 Jun 28, 2020
 #3
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This graph should help you answer the question:

 

 Jun 28, 2020
edited by Alan  Jun 28, 2020
 #4
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Ok, thanks.

 Jun 28, 2020

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