The problem provides the equation of a function $y = -x(x-2)^2$ and its graph. The question does not explicitly ask for anything but based on the format of the request, I will describe the properties of the function.
2025/4/24
1. Problem Description
The problem provides the equation of a function and its graph. The question does not explicitly ask for anything but based on the format of the request, I will describe the properties of the function.
2. Solution Steps
The equation is . To understand the function, we should find its roots. The roots are the values of for which .
This equation is satisfied if or .
If , then , which means .
Thus, the roots of the function are and . The root at is a repeated root, meaning the graph touches the x-axis at but does not cross it. The root at is a single root, meaning the graph crosses the x-axis at .
Next, we can expand the expression.
This is a cubic polynomial. Since the leading coefficient is negative, the graph will tend to as tends to and it will tend to as tends to .
To find the y-intercept, we plug in , so .
The derivative is .
To find critical points, we set :
or
These are the locations of the critical points (local max or min).
3. Final Answer
The function is . It has roots at and . The graph crosses the x-axis at and touches the x-axis at . As , . As , . The y-intercept is