I need help with B, the interval on. which F is increasing according to my calculations is (1/4, Inf ) but it keeps giving me wrong on webworm, any input would be very helpful, thanks.
Previous Problem List Next Results for this submission Entered 3/h(4%) (0.25,infinity) none Answer Preview Result correct incorrect correct 2,00) none At least one of the answers above is NOT correct. (1 point) Let F(x) = -dt, for r > o In(4t) A. F, (x) 3/ln(4x) B. On what interval or intervals is F increasing? r E (1/4,inf) Give your answer as an interval or a list of intervals, e.g., (-infinity,81 or (1,5),(7,10), or enter none for no intervals.) C. On what interval or intervals is the graph of F concave up? T E none (Give your answer as an interval or a list of intervals, e.g., (-infinity,8] or (1,5),(7,10), or enter none for no intervals.) Use your answers above and your knowledge of derivatives and antiderivatives to sketch a graph of F(r
