Given the expression of the quadratic function
Finding the symmetry point of the function
Given the expression of the quadratic function
Finding the symmetry point of the function
To determine the symmetry (vertex) point of the quadratic function , we will use the formula for the x-coordinate of the vertex (or axis of symmetry) for a general quadratic function , which is given by:
In this problem, the coefficients are , , and . By substituting these values into the vertex formula:
This tells us that the x-coordinate of the vertex is . To find the y-coordinate of the vertex, we substitute back into the function :
Thus, the vertex of the function, also its symmetry point, is at the coordinate .
Therefore, the symmetry point of the function is .