What is the X vertex formula?
Get the equation in the form y = ax2 + bx + c. Calculate -b / 2a. This is the x-coordinate of the vertex. To find the y-coordinate of the vertex, simply plug the value of -b / 2a into the equation for x and solve for y.
Is the vertex on the x axis?
The vertex always occurs along the axis of symmetry. For a parabola that opens upward, the vertex occurs at the lowest point on the graph, in this instance, (−2,−1) . The x -intercepts, those points where the parabola crosses the x -axis, occur at (−3,0) and (−1,0) . where (h, k) is the vertex.
How do you find the axis of symmetry?
The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola. For a quadratic function in standard form, y=ax2+bx+c , the axis of symmetry is a vertical line x=−b2a .
Where is the axis of symmetry?
vertex
The axis of symmetry is the vertical line that goes through the vertex of a parabola so the left and right sides of the parabola are symmetric. To simplify, this line splits the graph of a quadratic equation into two mirror images.
Is axis of symmetry and vertex the same?
The extreme point ( maximum or minimum ) of a parabola is called the vertex, and the axis of symmetry is a vertical line that passes through the vertex.
Is axis of symmetry X or Y?
The line (or “axis”) of symmetry is the y-axis, also known as the line x = 0.
What is axis symmetry formula?
The axis of symmetry of a parabola is a vertical line that divides the parabola into two congruent halves. The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola. For a quadratic function in standard form, y=ax2+bx+c , the axis of symmetry is a vertical line x=−b2a .
What is axis symmetry?
The axis of symmetry is the vertical line that goes through the vertex of a parabola so the left and right sides of the parabola are symmetric. To simplify, this line splits the graph of a quadratic equation into two mirror images.
