Review on identifying and combining linear functions

Identify f(6)
The interval where f(x) > g(x)

Identify f(-3)

f(x) = -2; x = ?

f(x) = 2; x = ?
Identify whether or not the image above represents a function.
Identify whether or not the image above represents a function.
Add f(x) and g(x) together and draw the appropriate graph.
Add f(x) and h(x) together and draw the appropriate graph.
Find h(x) - f(x) and draw the appropriate graph.