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BWA #5 Review
Test Description: Review for BWA #5 tomorrow!
Instructions: Answer all questions to get your test result.
1) Describe how the graph of the quadratic function in the form y=a(x-h)^2+k changes when the value of k is increased by 1?
A
translated 1 unit left
B
translated 1 unit down
C
translated 1 unit up
D
translated 1 unit right
2) What is the complete factorization of 12x^2+2x-4?
A
2(2x-1)(3x-2)
B
2(2x+1)(3x-2)
C
2(2x+1)(3x+2)
D
2(2x-1)(3x+2)
3) Describe how the graph of the quadratic function in the form y=a(x-h)^2+k changes when the sign of a changes from negative to positive?
A
reflected in the y-axis
B
translated down 1 unit
C
reflected in the x-axis
D
translated up 1 unit
4) What are the solutions of the equation x^2-8x-33=0?
A
3, -11
B
-3, -11
C
-3, 11
D
3, 11
5) What is the equation of the parabola that passes through the points (0, 25), (4, 17.4), and (10, 7.5)?
A
y=25x^2-2x+0.025
B
y=0.025x^2-2x+25
C
y=0.025x^2+2x+25
D
y=25x^2+2x+0.025
6) What is the equation of the parabola that passes through the point (3, -2) and has a vertex (2, 0)?
A
y=-2(x-2)^2
B
y=-2(x+2)^2
C
y=2(x-2)^2
D
y=2(x+2)^2
7) What is the equation of the parabola that has a vertex at the origin and a directrix x=2.5?
A
x=(1/2.5)y^2
B
x=-(1/2.5)y^2
C
x=-(1/10)y^2
D
x=(1/10)y^2
8) What is the complete factorization of 12x^2+14x-6?
A
2(3x-1)(2x-3)
B
2(3x+1)(2x-3)
C
2(3x-1)(2x+3)
D
2(3x+1)(2x+3)
9) What are the solutions ?
A
x = -1.68, -1.18
B
x = -1.68, 1.18
C
x = 1.68, -1.18
D
x = 1.68, 1.18
10) What is the maximum of the function h(t)=-5t^2+7t?
A
4.52
B
4.25
C
2.45
D
5.42
*select an answer for all questions
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