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CAHSEE Practice: Problems 1-3 khanacademy

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Problem number 1.  Which number has the greatest absolute value? Absolute value is just the distance that the number is from 0, or how large the number is, regardless of its sign or its direction. So if you kind of visualize it on a number line, the absolute value of minus 17. Minus 17 is 17 to the left of 0. So its absolute value is just 17. The absolute value of minus 13? Well, it's 13 to the left of 0, if you imagine it on a number line. So it's just going to be 13. Absolute value of 15? Well, that's just going to be 15. It's 15 to the right of 0 on the number line. I think you see a pattern here. When you take the absolute value of a number, you essentially just disregard the sign. The absolute value of a negative number is going to be positive, and the absolute value of a positive number is going to be positive. The absolute value is always going to be positive, because you're just measuring how far you are away from 0 on the number line....