Or the quadratic function f left parenthesis x right parenthesis equals 4 x squared plus 8 x plus 1, answer parts (a) through (c). verify the results using a graphing utilitythe domain of f is
nothing.
(type your answer in interval notation.)
the range of f is
nothing.
(type your answer in interval notation.)
(c) determine where the function is increasing and where it is decreasing.
the function is increasing on the interval
nothing.
(type your answer in interval notation.)
the function is decreasing on the interval
nothing.
(type your answer in interval notation.)