Question

Consider the equation below. x² x2 + 7 (a) Find the interval on which fis increasing. (Enter your answer using interval notation.) Find the interval on which fis decreasing. (Enter your answer using interval notation.) (b) Find the local minimum and maximum values of f. (If an answer does not exist, enter DNE.) local minimum value local maximum value (c) Find the inflection points. (x, y) = (-V 32 7 1 34 Your answer cannot be understood or graded. More Information) (smaller x-value) X (x,y) = ( VB 7 1 V 34 Your answer cannot be understood or graded. More Information ) (larger x-value) X Find the interval on which fis concave up. (Enter your answer using interval notation.) Find the interval on which fis concave down. (Enter your answer using interval notation.)

Answer 1

flas +7 22 da ( 1 - a) flla) a2 dett = lac²+79a-a2(22) (aktyje 14a (a²712 fila)=0 72120d 100 ??? 142 a= a fiko flso حلى - XEL-Do) a=-1 -14 64 co fl-1) = 141) (127) f'(I) = 140 (1272 He Loio a=1 14 bu >O RO) o? Lt zo 0= Q) f is increasing LO 0) f is deco easing on (0ركه b) Local minimum value n Local maaimur value = DNE

PLC) : 14 대용 Lalyzję) J HTL414a2에기 영개 9 (3) = (-33) 3 1-30 0 l TIP | at 15 flizo 왜<O | OO @ J궁 우 - J) 2 느 외동 C) Inflection points 95F,급 (무은겨Re a님 - dn ondowod (P 이 ㅛ concave down: (-dy-JJJ, 글, 0)