The correct option is C, No, there are no maximum or minimums.
Here we have the function:
y = -1/x^2
How to know if the function has a minimum or maximum?
Remember that for a function f(x), a maximum is the function evaluated in a given value c such that:
f(c) ≥ f(x) for every x in the domain.
And the minimum is defined in a similar way.
In this case the function is a rational function, and the graph can be seen in the image below:
There you can see that the function tends asymptotically to 0, which is our maximum. So the function is never zero, then it is not a maximum, and clearly we don't have a minimum, as the function tends to negative infinity.
If you want to learn more about maximums and minimums:
https://brainly.com/question/12446886
#SPJ1