Use the graph of f to find the domain and range of the function
Domain
• The dot at (-8, -10) indicates that the domain of f st
at and includes -8.
• The circle at (-4, 4) indicates that -4 is not part of
the domain.
• The arrow on the right side indicates that the graph
will continue without bound.
The domain of f is [-8, -4) ∪ (-4, ∞). In set-builder
notation, the domain is {x | -8 ≤ x, x ≠ -4, x 6 }.
Range
The graph does not extend below f (-8) or -10, but f (x) increases without bound for greater and
greater values of x. So, the range of f is [-10, ∞).
