Chapter 7 Rational Functions - College of the Redwoods
Chapter 7 Rational Functions - College of the Redwoods
Chapter 7 Rational Functions - College of the Redwoods
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Section 7.7 Solving <strong>Rational</strong> Equations 727<br />
7.7 Answers<br />
1. x = −7/2<br />
y<br />
10<br />
7. none<br />
9. − 19<br />
49<br />
y=1<br />
(−3.5,3)<br />
−3.5<br />
(1,0)<br />
y=3<br />
x<br />
10<br />
11. none<br />
13. 41<br />
15. − 128<br />
9<br />
17. − 8 3 , 5 9<br />
3. x = 5/3<br />
x=−2<br />
y<br />
10<br />
19.<br />
7 + √ 97<br />
, 7 − √ 97<br />
8 8<br />
21. x = −35/9 or x = 2<br />
y<br />
10<br />
y=2 (1.6667,2)<br />
(−1,0)<br />
y=−1<br />
1.6667<br />
x<br />
10<br />
(−3.8889,9/14) (2,9/14)<br />
y=0<br />
(−2.5,0)<br />
x<br />
y=9/14<br />
10<br />
x=3<br />
x=−5<br />
x=0<br />
5. x = 0<br />
y<br />
10<br />
23. x = −3 or x = 3<br />
y<br />
10<br />
y=2<br />
(−3/2,0) 0<br />
x<br />
10<br />
(−3,1/4) (3,1/4)<br />
y=0 xy=1/4<br />
10<br />
y=−3<br />
(0,−3)<br />
x=1<br />
x=−1 x=1<br />
Version: Fall 2007
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