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Intermediate Algebra – Student Workbook – Second Edition 2013

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Appendix A:<br />

You Try Answers<br />

You Try Problem 9<br />

x-intercepts (-1.58, 0) & (1.58, 0)<br />

You Try Problem 12<br />

Solutions x = -2.35, x=2.35<br />

You Try Problem 2<br />

a) 1 repeated real solution, x = -3<br />

b) no real solution<br />

c) 2 real solutions, x = -3.5, 1<br />

You Try Problem 6<br />

a) x = 0, -3<br />

b) x = 2, -5<br />

c) x = -1/2, 2<br />

You Try Problem 12<br />

a, b, and c<br />

All solutions are x=2, -5<br />

Lesson 5b<br />

You Try Problem 3<br />

a) 4032a 11 b 2<br />

b) 12x 2 + xy <strong>–</strong> y 2<br />

c)<br />

xy 4<br />

25<br />

6y 17<br />

x 23<br />

d)<br />

e) 3x 3 + 5x 2 <strong>–</strong> x + 2<br />

You Try Problem 10<br />

x = 3.25<br />

You Try Problem 11<br />

a) T(r) = 354.5<br />

r<br />

c) T(60) is about 6 hours.<br />

d) r = 35.45 mph<br />

Lesson 6a<br />

Scottsdale Community College Page 289 <strong>Intermediate</strong> <strong>Algebra</strong>

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