extreme
false
The graph of a polynomial in X crosses the X-axis at x-intercepts known as the roots of the polynomial, the values of x that solve the equation.(polynomial in X) = 0 or otherwise y=0
2 or 5
set the values of the y equal to zero
Yes.
A local minimum.
The answer you're looking for is a "local maximum." A local maximum of a polynomial is a point where the polynomial's value is greater than the values of the polynomial at nearby points. Mathematically, this occurs when the first derivative is zero (indicating a critical point) and the second derivative is negative (indicating concavity). Local maxima can occur at one or more points within the polynomial's domain.
Substitute that value of the variable and evaluate the polynomial.
false
Find values of the variable for which the value of the polynomial is zero.
it means to see which number is bigger and which number is smaller
The graph of a polynomial in X crosses the X-axis at x-intercepts known as the roots of the polynomial, the values of x that solve the equation.(polynomial in X) = 0 or otherwise y=0
It is halfway along the distribution of set values. There are as many members of the set with values smaller than the median as there are with values bigger than it.
2 or 5
zero
-2
4 and 5 -4 and -8