The axis of symmetry is x= -1
What is graph?
The axis of symmetry is an imaginary straight line that divides a shape into two identical parts, thereby creating one part as the mirror image of the other part. When folded along the axis of the symmetry, the two parts get superimposed. The straight line is called the line of symmetry/the mirror line. This line can be vertical, horizontal, or slanting.
The axis of symmetry is a straight line that makes the shape of the object symmetrical. The axis of symmetry creates the exact reflections on each of its sides. It can be either horizontal, vertical, or lateral. If we fold and unfold an object along the axis of symmetry, the two sides are identical. Different shapes have different lines of symmetry.
As, from the given graph
the vertex of the parabola is (-1,-2).
Again the parabola is open vertically not horizontally.
So, the axis of symmetry is x= -1.
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