Chapter 9: Exercises with Answers
Chapter 9: Exercises with Answers
Chapter 9: Exercises with Answers
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
976 <strong>Chapter</strong> 9 Radical Functions<br />
9.6 <strong>Answers</strong><br />
1. Yes, because 8 2 + 15 2 = 17 2<br />
3. No, because 8 2 + 9 2 ≠ 17 2<br />
5. Yes, because 12 2 + 35 2 = 37 2<br />
43.<br />
a) In the figure that follows, XP = XQ.<br />
y<br />
10<br />
7. No, because 11 2 + 17 2 ≠ 28 2<br />
9. 4<br />
11. 4 √ 3<br />
P (0,5)<br />
X(x,y)<br />
y=(1/2)x<br />
13. 2 √ 2<br />
x<br />
−5 10<br />
15. 5 √ 3<br />
17. The legs have lengths 3 and 4.<br />
19. The legs have lengths 8 and 15 centimeters.<br />
21. (3, 4, 5), (5, 12, 13), and (7, 24, 25),<br />
<strong>with</strong> m = 3, 5, and 7, respectively.<br />
23. 21.63 ft<br />
25. 32.25 ft<br />
27. 26.62 ft<br />
−5<br />
b) y = (1/2)x<br />
Q(4,−3)<br />
29.<br />
31.<br />
33.<br />
35.<br />
37.<br />
√<br />
205<br />
√<br />
37<br />
√ √<br />
234 = 3 26<br />
√<br />
17<br />
√ √<br />
250 = 5 10<br />
39. k = 3, −1.<br />
41. k = 1, 3.<br />
Version: Fall 2007
Change language