The figure below is the graph of a derivative f'. Give the x-values of the critical points of f. At which critical points does f have local maxima, local minima or neither? Enter the critical points in increasing order. Round your answers to the nearest integers. If there are less than three critical points, enter the critical points first, then enter NA in the remaining answer field(s) and select "neither a maximum nor a minimum" from the dropdown menu. X = X = X = is is W is

The average temperature of a particular town in Alberta can be represented by the function 6 T=15.8sin((-3))+5, where T is the average temperature in degrees Celsius and t is the time in months after January 1. The minimum number of months, to the nearest tenth of a month, it takes for the average temperature of the town to rise from 5°C to 15°C is a. 1.3 months b. 3.0 months c. 2.6 months d. 4.3 months

Please answer both of the questions and I will give you a thumbs up!

Determine all critical points for the function. y = 3x2 - 96x Select one: A.x = 0, x = 4, and x = -4 O B.x = 0 O C.x = 4 O D.x = 0 and x = 4