Quartic Function
1. The problem is to analyze the function $y = x^4$ and understand its properties.
2. This function is a polynomial of degree 4. It is even because $y(-x) = (-x)^4 = x^4 = y(x)$.
3. To find intercepts, set $y=0$:
$$x^4 = 0 \\ x = 0$$
The graph passes through the origin (0,0).
4. To find critical points, compute the derivative:
$$y' = 4x^3$$
Setting $y'=0$ gives $4x^3=0 \\ x=0$.
5. To determine the nature of critical point at $x=0$, compute the second derivative:
$$y'' = 12x^2$$
At $x=0$, $y''=0$ so the second derivative test is inconclusive. However, since $y = x^4$ is positive for all $x
eq 0$ and zero only at 0, the point at (0,0) is a minimum.
6. The graph shape is a parabola-like curve opening upward, flatter near the origin compared to $x^2$, symmetric about the y-axis.
Final answer:
The function $y = x^4$ has a minimum at (0,0), is symmetric, with intercept at origin, and derivative $y' = 4x^3$.