CC-15. a) y = (x-4)/2 b) y = -(3/2)x c) y = 3x - 6 d) cube root of (x-1)
CC-16. Yes, each pair has the line y = x as a line of symmetry.
CC-18. a)
x f(x) x g(x)
0 4 4 0
1 6 6 1
2 8 8 2
-1 2 2 -1
-2 0 0 -2
x and y values are interchanged.
b) (27, 10), (14, 3.5), (b, a), (y, x)
CC-19. x = 0.53
CC-20. (-3, 0, 5)
CC-21. If she adds nothing else to the account and it just sits there making interest, she will have $440.13 on her eighteenth birthday.
CC-22. x = 2.5
CC-23. (x + 3)2 + (y - 5)2 = 9
CC-24. no solution
a) The matrix has no inverse; the system has no unique solution.
b) Planes don't intersect in a single point-parallel lines are formed.
CC-25. 2.11 feet
CC-26.
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| Last updated 2008/09/28 05:12:14 PDT | Hits 187 |
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