Problem+2+Elise

a. (0,1) (3,7) The y value of the function is increasing on these intervals, so that means the function is increasing b. (1,3) The y value of the function is decreasing on this interval, meaning the function is decreasing c. (2,4) (5,7) The first derivative is increasing and the second derivative is positive on these intervals, so the function is concave up d. (0,2) (4,5) The first derivative is decreasing and the second derivative is negative on these intervals, so the function is concave down e. (2,2) (4,3) (5,4) These are the points where the second derivative changes from positive to negative, and is either zero or undefined. They are also points where the function changes concavity.

Very good (Ms. Sweeney)