Write the equation as f(x) = a(x - h)2 + k. Identify the vertex.f(x) = x2 + 3x + 1
A. f(x) = (x + 3)3 - 9; (-3, -9)
B. f(x) = 
2 - 
; 
C. f(x) = 
2 - 
; 
D. f(x) = (x + 3)3 - 9; (3, -9)
Answer: C
Mathematics
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Graph the function.y = -3 cos 
+ 2
A. 
B. 
C. 
D. 
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Solve the system of equations.
A. x = -1, y = 1, z = -2 B. x = -2, y = -1, z = 1 C. inconsistent (no solution) D. x = -2, y = 1, z = -1
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Solve the problem.When two lenses are placed next to each other, their combined focal length (a measurement that can be negative or positive) is described by the equation f = 
.If f1 = 0.001, what are the asymptotes of this function?
What will be an ideal response?
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Solve the problem.A salesperson earned 
a week plus a bonus of 
for each service contract sold. What is the weekly pay if 6 service contracts were sold?
A. $300 B. $138 C. $538 D. $438
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