Question

use a graphing utility to approximate the relative minimum/relative maximum of each function. f(x)=8x^4-3x-1

Answer 1

if you graph it, looks like it is a minimum where x=0.5 and y=-2

Answer 2

maximum?

Answer 3

no minimum, all other values of x will give a larger y, for example if x=0 then y= -1 which is greater then -2

Answer 4

here is a graph of the function form wolfram alpha