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

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

Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = -x2 + 2x - 7

What is the value of x, at which the quadratic function f(x)=-2x^2+8.9x-1.8 achieves its maximum? Round your answer to 2 decimal places.

Instructions: Given the quadratic function, state whether the parabola opens up or down, and whether it has a maximum or minimum.y=−2x2+8x−3𝑦=−2𝑥2+8𝑥−3The parabola opens and has a vertex of (( ,, )), which is a value.