Use the graph of f to determine each of the following Where

Use the graph of f to determine each of the following. Where use interval notation. the domain of f the range of f intervals on which f ins increasing intervals on which is decreasing intervals on which f is constant f(-2) the value of x for which f(x) = 3 the values of x for which f (x) lessthanorequalto 0 the values of x for which f (x) greaterthanorequalto 0

Solution

a) domain of f is (-,0)U(0,)

b)range of f is (-,0)U(0,)

c)f is never increasing

d)f is decreasing in  (-,0)U(0,)

e)f is never constant

f)f(-2) =-2

g)f(x) =3

=>x=1.2

h)f(x)<=0

in interval (-,0)

i)f(x)>=0

in interval (0,)