Which of the following accurately lists all discontinuities of the given function? f of x equals enlarged left-brace first row 4 comma x less than negative 4. Second row open paren x plus 2 closed paren squared comma negative 4 less than or equal to x less than or equal to negative 2. Third row negative one half x plus 1 comma negative 2 less than x less than 4. Fourth row negative 1 comma x greater than 4.
Answer
A
point discontinuities at x is equal to negative 4 and x is equal to 4 ; jump discontinuity at x is equal to negative 2
B
jump discontinuities at x is equal to negative 4 , x is equal to negative 2 , and x is equal to 4
C
point discontinuity at x is equal to negative 2
D
point discontinuity at x is equal to 4 ; jump discontinuity at x is equal to negative 2