3 years ago

Which of the following is an even function?

Mathematics

1 answer:

nika2105 [10]3 years ago

3 0

Answer:

An even function is:

f(x) = 7

Step-by-step explanation:

An even function accomplish the following condition:

f(x)=f(-x) (1)

Applying (1), we have:

f(x)= (x-1)^2 $\neq$ f(-x) $\neq$ (-x-1)^2
f(x)= 8x $\neq$ f(-x) $\neq$ -8x
f(x)= x^2 -x $\neq$ f(-x) $\neq$ (-x)^2 +x

f(x)=7 = f(-x)= 7

The last one is even.

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