Write the quadratic function in vertex form.y = x2 - 20x
A. y = (x + 20)2 - 20
B. y = (x - 20)2 - 400
C. y = (x + 10)2 - 10
D. y = (x - 10)2 - 100
Answer: D
Mathematics
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Solve.
+ 4 = 3
A. 49 B. 1 C. -1 D. empty set
Mathematics
If the function is one-to-one, find its inverse. If not, write "not one-to-one."f(x) = x3 - 8
A. not a one-to-one
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
+ 8
Mathematics
Find a singular value decomposition of the matrix A.A = 
A.
A = 
B.
A = 
C.
A = 
D.
A = 
Mathematics
Find the phase shift of the function.y = 4 cos 
A. 
B. 4
C. -4
D. - 
Mathematics