Which statements about the graph of the function f of x is equal to negative x squared minus 4 x plus 2 are true? Choose three correct answers.
A
The function has a positive y -intercept.B
The function is increasing over the interval negative infinity comma negative 2 .C
The domain is start set x such that x is less than or equal to negative 2 end set .D
The function is decreasing over the interval negative 4 comma infinity .E
The range is start set y such that y is less than or equal to 6 end set .