Rewrite the quadratic function in standard form by completing the square.f(x) = x2 + 6x - 4
A. f(x) = (x + 3)2 - 13
B. f(x) = (x + 3)2 + 13
C. f(x) = (x + 6)2 + 40
D. f(x) = (x + 6)2 - 40
Answer: A
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Provide an appropriate response.Find the direction in which the function is increasing most rapidly at the point P0.f(x, y, z) = xy - ln(z), P0(1, -2, 2)
A. 
(-4i - 2j + k)
B. 
(-4i + 2j - k)
C. 
(-4i + 2j - k)
D. 
(-4i + 2j - k)
Solve the equation.
- 
= 3
A. 45 B. -90 C. 90 D. -45
Discuss the equation and graph it.r = 
A. directrix perpendicular to polar
axis 16 right of pole
center 
vertices 
, 
B. directrix parallel to polar
axis 16 above pole
center 
vertices 
, 
C. directrix parallel to polar
axis 16 below pole
center 
vertices 
, 
D. directrix perpendicular to polar
axis 16 left of pole
center 
vertices 
, 
Find the phase shift of the function.y = cos 
A. 
units down
B. 
units to the left
C. 
units to the right
D. 
units up