Suppose f(x) is a quadratic function. The slope of f(x) at the extremum point is a.0b.infinitec.negatived.positive

If slope is zero for a quadratic function, the point indicates the maximum value of the function.Select one:TrueFalse

The slope of a function f(x) is known to be 0 at point x*. The function may not attain extremum point at x*.  Select one:TrueFalse

Define a quadratic function f(x)=7.6x^2+5.3x+2.7 for all positive x. Denote f'(x) to be the derivative of f(x). What is the value of f'(2)?

If y=f(x) and the function is known to attain a maximum point at x0, then at the point x0a.f’(x0) <0b.f’(x0) >0c.f’’(x0) >0d.f’’(x0) <0

When f(x)=sinx and x = 0, then slope will be:A.1B.0C.-1D.2