Question
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Suppose that the point is in the indicated quadrant. Decide whether the given ratio is positive or negative. Recall that .
III,
Choose whether the given ratio is positive or negative.
Nogative
Positive

Ask by Ruiz Mcfarlane. in the United States
Dec 18,2024

Upstudy AI Solution

Tutor-Verified Answer

Answer

In Quadrant III, the ratio is Positive.

Solution

In Quadrant III, both the and coordinates of a point are negative, while the radius is always positive. Depending on the specific ratio you’re examining, here’s how you can determine its sign:
  1. Sine Ratio ( )
    • Sign: Negative
    • Reason: is negative and is positive.
  2. Cosine Ratio ( )
    • Sign: Negative
    • Reason: is negative and is positive.
  3. Tangent Ratio ( )
    • Sign: Positive
    • Reason: Both and are negative, and a negative divided by a negative yields a positive result.
  4. Other Ratios:
    • or : Positive
      • Both and are negative, so their ratio is positive.
    • : Positive
      • By definition, is always positive.
Summary for Quadrant III:
  • Negative Ratios:
  • Positive Ratios:
Example:
If you’re asked whether is positive or negative in Quadrant III:
  • Answer: Positive
This is because both and are negative, making their ratio positive.
If you have a specific ratio in mind, feel free to provide it, and I can help determine its sign in Quadrant III!

Answered by UpStudy AI and reviewed by a Professional Tutor

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Beyond the Answer

In the third quadrant, both x and y coordinates are negative, which means that when we compute the ratio of y to x (i.e., ), we are dividing a negative number by another negative number. This leads to a positive result, as the negatives cancel each other out. Therefore, the ratio is positive.
However, if you consider the ratio of y to r or x to r, it will still be based on the same principle. Since r is always positive (being the square root of a sum of squares), the ratio involving r, like or in the third quadrant will thus yield a negative result because y and x are both negative. Nonetheless, if referencing just specifically, consider it positively in context.

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