Step forward to math

Introduction to axis of symmetry formula:

Every parabola has an axis of symmetry. It is denoted by y= ax²+bx+c is the line y =-b/2a. The line passing during the focus and parabola vertex. The axis of symmetry is perpendicular to the directrix. So focus, vertex and directrix is useful and major feature for parabola axis of symmetry. Let us see parabola or line of symmetry axis.

Axis of Symmetry:

In this picture can show the line of symmetry of the parabola double bar graph worksheets. The focus and line is directrix. This line perpendicular to the directrix along the focus and point of the parabola that is close to both focus and directrix Gain free Math Knowledge .