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 [tex]\neq[/tex] f(-x) [tex]\neq[/tex] (-x-1)^2
- f(x)= 8x [tex]\neq[/tex] f(-x) [tex]\neq[/tex] -8x
- f(x)= x^2 -x [tex]\neq[/tex] f(-x) [tex]\neq[/tex] (-x)^2 +x
The last one is even.
