Final answer:
The slope of the tangent to a curve can vary based on f(x).
Step-by-step explanation:
The slope of the tangent to a curve can change for different values of x, depending on the shape of the curve. It can be positive, negative, or zero. For example, consider the curves of the functions y = x^2 and y = -x^2. The slopes of the tangents to these curves will vary at different values of x.