12. Based on a function whose leading coefficient is -7 and constant is 5, which of the following is a possible rational root? a. C. d. –7

Algebra and Trigonometry (6th Edition)
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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**Transcription for Educational Website**

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**12. Based on a function whose leading coefficient is -7 and constant is 5, which of the following is a possible rational root?**

- a. \( \frac{7}{5} \)
- b. \( -\frac{1}{5} \)
- c. \( \frac{5}{7} \)
- d. \(-7\)

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**13. According to the Fundamental Theorem of Algebra (FTA), how many roots does the polynomial \( f(x) = 4x^5 - 3x^2 - x + 5 \) have?**

- a. 7
- b. 5
- c. 8
- d. 4

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**14. Is \( x = -3 \) a zero of the function \( f(x) = 2x^3 - 5x^2 - 28x + 15 \)?**

- a. yes, the remainder is \( r = -60 \)
- b. no, the remainder is \( r = 0 \)
- c. no, the remainder is \( r = -60 \)
- d. yes, the remainder is \( r = 0 \)

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Transcribed Image Text:**Transcription for Educational Website** --- **12. Based on a function whose leading coefficient is -7 and constant is 5, which of the following is a possible rational root?** - a. \( \frac{7}{5} \) - b. \( -\frac{1}{5} \) - c. \( \frac{5}{7} \) - d. \(-7\) --- **13. According to the Fundamental Theorem of Algebra (FTA), how many roots does the polynomial \( f(x) = 4x^5 - 3x^2 - x + 5 \) have?** - a. 7 - b. 5 - c. 8 - d. 4 --- **14. Is \( x = -3 \) a zero of the function \( f(x) = 2x^3 - 5x^2 - 28x + 15 \)?** - a. yes, the remainder is \( r = -60 \) - b. no, the remainder is \( r = 0 \) - c. no, the remainder is \( r = -60 \) - d. yes, the remainder is \( r = 0 \) ---
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