Which functions are even?​

Photosynthesis, the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Step-by-step explanation:

First function:  even, because both exponents are even; graph is symmetric about the x-axis

Second function:  mixture of even and odd exponents:  not even

Third function:  This is the square root of x - 2; not even

Fourth function:  |x| is even; graph is symmetric about the x-axis

594 square inches

step-by-step explanation:

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