College Algebra - Chp.3: Question Preview (ID: 29040)


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Which formula should you use to maximize a function?
a) x = -b/2a b) y = mx + b c) y = a(x - h)^2 + k d) x = -a/2b
Name the vertex: y = 2(x - 7)^2 - 5
a) (-7, -5) b) (7, 5) c) (7, -5) d) (2, -5)
Name the axis of symmetry: y = -3(x + 6)^2 + 8
a) x = 8 b) x = -6 c) x = -3 d) x = 6
Which of the following is NOT a property of a polynomial graph.
a) smooth b) curvy c) continuous d) sharp edges
Find the y-intercept: f(x) = 3/(x - 2)
a) (0, -1.5) b) (0, 0) c) (0, 2/3) d) (0, 3.2)
Find the x-intercept: f(x) = 3/(x - 2)
a) (0, 0) b) none c) (0, -1.5) d) (0, 3)
Name the vertical asymptote: f(x) = 3/(x - 2)
a) x = -2 b) x = 3 c) x = 2 d) y = -2
Name the horizontal asymptote: f(x) = 3/(x - 2)
a) y = 3 b) none c) y = 0 d) y = 3/2
Name the possible rational zeros: x^3 - 2x^2 + 3x + 8
a) +/- 1, 2, 4, 8 b) +/- 1, 2, 3, 4, 8 c) +/- 2, 4 d) +/- 1, 8
Find the vertex: f(x) = 2x^2 + 8x - 9
a) (2, 13) b) (8, 9) c) (-2, 22) d) (-2, -17)
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