Find the local maximum, and minimum value and saddle points of the function.
f(x,y) = x² - xy + y² - 9x + 6y + 9
Min at (4, -1), f(4, -1) = -12, Max point - none, Saddle point - none
You might also like to view...
Solve the equation for the indicated variable.
= b for x
A. 
B. ab
C. 
D. b + a
Use the circle graph to solve the problem.A survey of the 7970 vehicles on the campus of State University yielded the following circle graph.
What percent of the vehicles are hatchbacks?
A. 287% B. 7% C. 36% D. 26%
Multiply.(5m + 2)2
A. 25m2 + 4 B. 25m2 + 20m + 4 C. 5m2 + 4 D. 5m2 + 20m + 4
Solve the problem.In 2011, John invested $34,000 in the stock market. By 2016 his investment had grown to $38,600. If the market continues to grow approximately linearly, how much will be in his account in 2022? Give your answer to the nearest dollar.
A. $38,601 B. $39,521 C. $43,200 D. $44,120