Algebra 2 Semester 2 Practice Final Summer 13

ID: A
38. ANS:
foci (0, ± 2 10)
REF: 10-4 Ellipses
OBJ: 10-4.2 Finding and Using the Foci of an Ellipse
TOP: 10-4 Example 3
KEY: co-vertex of an ellipse | ellipse | equation of an ellipse | graphing | foci of an ellipse | major axis of an ellipse
| minor axis of an ellipse
39. ANS:
x 2
9 + y 2
25 = 1
REF: 10-4 Ellipses
OBJ: 10-4.1 Writing the Equation of an Ellipse
TOP: 10-4 Example 1
KEY: ellipse | equation of an ellipse | vertex of an ellipse | co-vertex of an ellipse | minor axis of an ellipse | major
axis of an ellipse
40. ANS:
( x − 4) 2 + Ê
Ë
Á y + 2ˆ¯˜ 2
= 49
REF: 10-3 Circles OBJ: 10-3.1 Writing the Equation of a Circle
TOP: 10-3 Example 2
KEY: center of a circle | circle | equation of a circle | radius
41. ANS:
d 3 + 6d 2 b + 12db 2 + 8b 3
REF: 6-8 The Binomial Theorem
TOP: 6-8 Example 3
42. ANS:
t 2 − t
, t ≠ −2, 0, 3
t − 3
OBJ: 6-8.2 The Binomial Theorem
KEY: Pascal's Triangle | binomial expansion
REF: 9-4 Rational Expressions OBJ: 9-4.2 Multiplying and Dividing Rational Expressions
TOP: 9-4 Example 3
KEY: simplifying a rational expression | restrictions on a variable | multiplying rational expressions
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