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ALGEBRA II
WS 1211 ANSWERS
1)
2)
Graphing, Factoring, Completing the Square, and Quadratic Formula
3) b2 + 169
4) -16 < x < 4
5) y – 2 = 3(x + 5) or y = 3x + 17
6) y – 2 = -1/3(x + 5) pr u = -1/3x + 1/3
7) 60 2
8) f(x) = (x – 5)(x + 2) or f(x) = x2 – 3x – 10
9) slope is 4/3
10) 27/m3
11) -3x2 + 30x – 75
For 12 – 15, I will state the answers for the questions. You must have work
for them and have used each method at least once.
3  17
4
2  13
4x2 + x2 – 9 = 0  x =
4
3x2 – 2x = 5  x = -1 or x = 5/3
x2 – x = 12  x = -3 or x = 4
x2 – 8x + 15 = 0  x = 3 or x = 5
2x2 + 3x – 1 = 0  x =
17) [0, 4, 1, 0,20, 2] ** Answers will vary
18)
(0.75, 12)
19)3/4 of a second
20) 1.62 seconds