The term that describes a function that is symmetric about the y-axis is even function.
What is a function?
A function represents the relation between the input and the output of a system.
The condition of a function to be symmetric about the y-axis is:
We can replace the variable 'x' in the given function by '-x'. If both equations are same, then the function 'y' is said to be symmetric about the y-axis.
This is the same criteria of an even function.
Learn more about a function here: https://brainly.com/question/11212486
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