36. What will be the range of the given function if its vertex is (4.8) and it opens
upward
A. {y: y 28)
B. {y: y 24
C. {y:y S8) D.{y: y s 4)
37. The following are the characteristics of the graph y = -(x - 20)2 + 5, EXCEPT
A. The vertex of the graph is (20.5).
B. The graph opens downward.
C. (0,5) is the y-intercept of the graph.
D. The equation of the axis of symmetry is x=20
38. If the vertex of the graph is (10.20), what is its axis of symmetry?
A.x= 10 B.x = -10 C.x= 20 D.x= -20
39. What is the standard form of the quadratic function f(x) = x2 + 2x - 1?
A. f(x) = (x + 1)2 + 1
C. f(x) = (x + 1)2 + 2
B. f(x) = (x + 1)2 - 2
D. f(x) = (x + 1)2 - 1
=
40. The graph of y = x2 - 3 is obtained by sliding the graph of y = x2
A. 3 units downward C. 3 units to the right
B. 3 units upward
D. 3 units to the left
41. Given the quadratic function y = 4(x - 5)2 – 6, what is its vertex?
A. (4,-5) B. (5.-6) C. (-5,-6) D. (4,-6)
42. If the vertex of the parabola is at (-1, 4), which quadratic function corresponds to
this vertex? A. y = (x + 1)2 + 4
C. y = (x + 4)2-1
B. y = (x - 1)2 + 4
D. y = (x - 4)2-1
43. What is the equation of a quadratic function whose zeros are twice the zeros of y =
2x2 - x - 10?
A. f(x) = 2x2 - 20x + 20
C. f(x) = 2x2 - 2x - 5
B. f(x) = x2 - X-20
D. f(x) = 2x2 - 2x - 10
=
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44. What are the dimensions of the largest rectangular field that can be enclosed with
100 m of wire?
A. 24 mx 26 m
C. 50 m x 50 m
B. 25 mx 25 m
D. 50 m x 25 m
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45. Which quadratic function opens downwards and has a vertex (0, -3)?
A. y = (x + 3) 2
C. y = x2-3
B.y = - (x + 3)2
D.y = -x2-3
46. If the graph of y = x2 is moved 11 downward, what will be the new equation?
A. y = x2 +11 B.y = x2 - 11 C. y = (x - 11) D. y = (x +11)2
47. Emir wants to install a granite floor tile on a concrete flooring which perimeter measures
36 feet. What will be the dimension of the largest area of the concrete floor? Which of the
following functions will model the problem?
A. A = 18W - W2
C. A = 54 +9w-w2
B. A = 36 + 9W - W2
D. A = 81 + 18W - 2w2
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