Provide an appropriate response.The number of critical points of f(x, y) = x2 + x2y + y2 - 2y + 2 is

A. 0.
B. 1.
C. 2.
D. 3.
E. 4.


Answer: D

Mathematics

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Solve the problem.Find the y-intercept of the line normal to the curve y = x2 at 

A.
B.
C. 2
D.

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Graph the solution of the inequality on a number line.-1 < x < 3

A.
B.
C.
D.

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State whether the given function is linear and constant, linear but not constant, or nonlinear.f(x) = 

A. linear, but not constant B. linear, constant C. none of these D. nonlinear

Mathematics

Factor.-9x2 + 6x + 8

A. -(3x + 2)(3x - 4) B. -(9x + 2)(x - 4) C. -(3x - 2)(3x + 4) D. -(9x + 1)(x - 8)

Mathematics