Question

Find the largest open intervals on which the function is concave upward or concave downward, and find the location of any points of inflection. f(x) = -x - = -x - 3x +4 Select the correct choice below and fill in the answer box(es) to complete your choice. (Type your answer in interval notation. Use a comma to separate answers as needed. Use integers or fractions for any numbers in the expression.) O A. The function is concave upward on . The function never has an interval that is concave upward/downward. OB. The function is concave downward on . The function never has an interval that is concave upward/downward. OC. The function is concave upward on and concave downward on

Answer 1

plz like the answer

fex) = -x3-3x+4 Fcx) = -3x - 3 f"CM) = -6% u O f"c) 220 om ic is the function (-0000) concave upward and downward CO, co 12x +47-8 24% +4 fen) = 4*°+2x4 -8% +8 f'(X) = f"CX) f''col = 0 -%6 (%/100) (-oo, -76) X and downward upward on A con cave on few= 5 N-7 f'cm) and f") = -5 (x-7) 2 lo (2-733 2 does not exest- al n=7 u 7 and (7,00) concave upward downward m (-01V CSScanned with CamScanner