Find all points where the function has any relative extrema or saddle points and identify the type of relative extremum.f(x, y) = 
+ 
A. Relative minimum at (100, 100)
B. Saddle point at (0, 0)
C. Relative maximum at (1, 1)
D. No relative extrema
Answer: D
Mathematics
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Determine the system of inequalities illustrated in the graph. Write inequalities in standard form.
A. -2x + y ? 4 -3x + 4y ? 8 B. -2x + y ? 4 -3x + 4y ? 8 C. 2x + y ? 4 3x + 4y ? 8 D. 2x + y ? 4 3x + 4y ? 8
Mathematics
Multiply. Simplify and leave the numerator and denominator in your answer in factored form.
? 
A. 
B. 
C. 4
D. 
Mathematics
For this problem, recall that 
means 
.
?
If 
, find 
.
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Solve the system by substitution. x - 2y = 9-7x - 2y = 49
A. {(7, -5)} B. {(-5, -7)} C. {(-4, -8)} D. ?
Mathematics