Find all points where the function has any relative extrema or saddle points and identify the type of relative extremum.f(x,y) = x2 + 2y2 - xy2
A. Relative maximum at (0, 0) and saddle points at (2, 2) and (2, -2)
B. Relative minimum at (0, 0) and saddle points at (2, 2) and (2, -2)
C. Relative minimum at (0, 0) and relative maxima at (2, 2) and (2, -2)
D. Saddle point at (0, 0) and relative minima at (2, 2) and (2, -2)
Answer: B
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Find the composite function for the given functions and state the domain. g ? f for f(x) = 4x2 + 6x + 7 and g(x) = 6x - 5
A. 24x2 + 36x + 47 B. 4x2 + 6x + 2 C. 24x2 + 36x + 37 D. 4x2 + 36x + 37
Use properties of determinants to find the value of the second determinant, if the value of the first is known.
= 83
= ?
A. 83 B. 0 C. -83 D. cannot be determined
Write the improper fraction and mixed number represented by the shading.
A. 
; 3
B. 
; 3
C. 
; 3
D. 
; 3