The largest interval on which the function f(x) = x2 + 4x + 2 is increasing is
a. [0, ~)
b. (-~, 0]
c. [-2, ~)
d. (-~, -2]
e. (-2, ~)
The condition that the function is increasing is f '(x) > 0 or f ' (x) $\displaystyle \geq$ 0?
Thanks
The largest interval on which the function f(x) = x2 + 4x + 2 is increasing is
a. [0, ~)
b. (-~, 0]
c. [-2, ~)
d. (-~, -2]
e. (-2, ~)
The condition that the function is increasing is f '(x) > 0 or f ' (x) $\displaystyle \geq$ 0?
Thanks