Use interval notation to write the intervals over whichfisand

Select one:

a.a. (-,2)

b. (2, )

c. never constant

b.a. (-,2)

b. (2, )

c.x=2

c.a. (-,-1)

b. (-1, )

c. never constant

d.a. (-,-2)

b. (-2, )

c. never constant