Which statement best describes how to determine whether f of x is equal to x squared minus x plus 8 is an even function?
A
Determine whether negative x squared minus negative x plus 8 is equivalent to negative open paren x squared minus x plus 8 close paren .B
Determine whether negative x squared minus negative x plus 8 is equivalent to negative open paren x squared minus x plus 8 close paren .C
Determine whether negative x squared minus negative x plus 8 is equivalent to x squared minus x plus 8 .D
Determine whether negative x squared minus negative x plus 8 is equivalent to x squared minus x plus 8 .