WEBVTT
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we're being asked to find the opposite for each number
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. So remember, the opposite means it's a number
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that's the same distance from zero on the number line
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. Just it appears on the opposite side of the
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number line. So in other words, if it's
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positive, if the original numbers positive, he ever
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has to be negative. And if the original numbers
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negative, the upper will have to be positive.
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So let's start with Part A. We have positive
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five, so we have to think of what number
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would be five minutes away. But in the negative
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side of our number line. Well, that would
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be negative. Five. So notice the opposite really
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just means you need the opposite sign. So for
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Part B, we have negative 16. So we
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have to think of what number is 16 units away
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from zero on the positive side of the number one
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? Well, that would be positive. 16.
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So notice the opposite of a positive is a negative
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, and the opposite negative is a positive well part
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. See, we have a decimal value, so
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we have negative 9.8. But just because it's a
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decimal doesn't mean it changes anything so the number that
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would be 9.8 units away. On the positive side
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would just be positive. 9.8. And lastly,
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we have a fraction We have one half. So
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we have to think of a number that is one
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half unit away from zero, but on the opposite
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side of the number line. Well, that would
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simply just be negative one half. So again,
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notice to find the opposite of a number. All
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you're doing is changing the sign. If it starts
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positive, it will become negative. And if it
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starts negative, it will become positive.