Mastering Limits at Infinity for Every Function Type, Study notes of Mathematics

If you're struggling to figure out what happens to a graph as it goes off the edge of the paper, this guide is your lifesaver. This module breaks down Limits at Infinity, covering everything from basic polynomials to those tricky exponential and logarithmic functions. I’ve simplified the "end behavior" of graphs so you can predict where a function is headed—whether it’s hitting a horizontal asymptote, zooming to infinity, or just not existing. It’s packed with step-by-step examples on how to apply limit laws to e^x, natural logs (ln x), and power functions. If you need to know the difference between how a graph behaves at positive versus negative infinity for your next quiz, these notes make it super easy to visualize and calculate.

Typology: Study notes

2020/2021

Available from 03/30/2026

mkooki3e
mkooki3e 🇭🇰

8 documents

1 / 5

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
pf3
pf4
pf5

Partial preview of the text

Download Mastering Limits at Infinity for Every Function Type and more Study notes Mathematics in PDF only on Docsity!

‘is ig falling, (negative inginity), while if NoWce that as x appreaches positive. _ of negative inginity, YU becomes, | ~>0, the right- -tnd of the oe is ' Foca) to the x.- axis , but wil Tere? | “rising (positive infinity) . . . . inkeesect this fine. - at n is odd, the right and_ if ind The x-axis 1s the horizontal a Of the raph are in opposite directions, asymptote oF Fle) = 5. Thos, we / al ‘len is even, the rignt and left end olay ae aa i te araph are im the sa caezieN : ee, oo + en ma. i tin > Based on Yrese.end behaviors, we zp : J generalize ne value of the limits at , Pa bade el i lene : anne ac fay renal a nik of Polynomial Fonctions of Functions. a a eon n and t leading. east ee Lo hh | 00, i¢ ro mel Nigeven ad ; ony 1 295 if APO and nis event bale Cn) S07 Wh = (0). : Lnieodd lim x = lin ( a Xe Bes 8 xa too “Cs A MOOK | Consider the aragh O% £(X) = Gy the base ‘ic between O and 1. a im (SN q X-00- we ay 2 tt she (AY MN Seu (2) =o Sz) See) i. ) ee “ly The graphe of. ¢(x)= (+) “and (2) =2" ‘Ore reflections 6F each othee with “respect to the y - axis. They digger | rise and poull. Ih the cace of thd: (LY, “AS x Approaches posite inifirivh) , y moves closer ty zer0, Uuhilé as towards Positive “nginity, Me se: Sse) coe n(n) = “+ Properties of limits at inginihy of exponential unctions. . me eeor poet | ToS ae eee tin ee (22° re” 7 U0. j ‘+ For natural exponential Functions, we |: Mave:. . ess Figs lire €* = and Vie Ors! oO PMCS Pa AROS MED Seay Me DOTY | Propeches.o¢ Operations Involving - I" Ineinity PE, SORE 4 ooh geared —_—_ We Oe bad Ly dorms. oF the dicection phere shy “approaches ntqakve -inginity.yrnoves . Exist ~~ However, the Iimit aS x approaches let k be any teat homber | t) 2 oO+\e = hoo a) hook = 4, ig kro $)EOk= Fo,ip Keo 4.) £02 -D is indeterminate _ 8)’ =O h r yt ' Consider the araph of F(x) loge x. =I f) << iy -b car hea Does nob 29] i AOA A nna As x apercaches postive meinity, e Y moves towards. positive méini Fe ae n “negative inginity does not exTet since the ararh ig asymptote fo. Ss _ the Uraxic, which means thatit. _ does het. aperoach. negative inginity. SS “linn leq 2X = c0 andl limlog,x doce BS es ~*~ X98 eo. ok exist “Consider the graph of F(t)=log ix “the base ts between 0 gnett.. * | s & & & ~The graphs of #(x)= logax and ¢(x) Thus, lim 5e *=-00. los loga* ove replectionc oF cach [other with vecpect Yo the X-axis.” Ex... Evaluate. lim (-Zloq5 4x +10). FI the cast of 6(X)= log x, th could a be Obsexvid that ac x ‘ogproaches Step (le Apply the Nimit laws. Positive: IMFinitys Y moves toworde — lim (-2 lags 4x+10)= ( Yin -2) (tira, logy 4) © Regotive imginity. While, the limit “YF a 5. OSX. approaches neqate infinihy ae . dots not exist, similar t? ¢(x)= logs. fe xX, cas they. are both ASYmpolic to . ae (Ling logs Ax) + so a pe eal Step 2: Note, that the logarithmic Function if jim logs 1S iahos) and \im log 4% (x)= logs Ax 18 oF the form ¢(x) =loq4,%, Merete 9 © Where b> 4. Use the property of limits p , ra ’ = ~ - at infinity o¢ legartthmic Functions: [ Properticg of limits ab inginity. cr ic 4 sine E Legaritimic Functions 2H") +10°-2 [ings] +10 ; 2 -2(@)+ 10 : . “= -OH0 by . glimlegy X does not exich m . eC, Xe co PE is ff 2, 1 yee Oe a ons a peso. ee. : Thos, lim, (= 2 logs 4x #10) = -22.. sors mane r For natwral logarithmic funchonc’ EX. 3. What is the value of, itn (2) +a a a . ee ge spear no Cre aes \n.x = eo and lim ln » does not - = 4 (§) sR ta reer ne =-4(2) a