Which graph shows line symmetry about the y-axis?

Given function is

Now question says to find the graph that shows the axis of symmetry for the given function.

Graph is missing but I can help you to find the correct graph.

Given equation is in the vertex form whose formula is given by

Comparing given function with above formula, we get:

a=1, h=2 and k=1.

For the vertex formula , we know that axis of symetry is given by equation:

x=h

So for the given function, axis of symmetry will be x=2

Graph of x=2 will be a vertical line crossing x-axis at x=2

So you just need to find the graph from given choices which contains a vertical line crossing x-axis at x=2.

graph B

Step-by-step explanation: edg 2020

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