MATH 1151 Midterm: MATH 151 OSU M151 Q7 Sp10 Sol

• School: Ohio State University
• Department: Mathematics
• Course: MATH 1151
• Professor: All

Document Summary

151 quiz 7 form a: tie top ard bottom ma ins of a poster are 8 cm and the side margins are eacil 4 cm. The area oj printed material on the poster is fixed at 382 square centimeters: j3 ptsl l t r denole the width of the p nted area a,nd 9 its height. Write down an eqlation which expresses the total area ,4 of the poster jn telms of t and 9. J,, fe. : [3 pts] using the fact thal the printed area is fixed, find an expression ,4(r) for the axea a as a function of, on1y. A(xr: ltt {sta +jos6x t: [3 pts] determine tie doma,in of n(c). A < x: 14 ptsl find all crilica. l valn s of rt(t) on its domain. 16 - e!9 =o lbxr -:os6--o i r""rtr x. il ro",t: [4 pis] fo! ea. ch critical point, det rmine if it is a locs,l ma,"r or min. r",/+^+ t// o.