IA10.5-10.6Sol - Name: Math 35 In Class Activity Date:...

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Unformatted text preview: Name: Math 35 In Class Activity Date: Section 10.5-10.6 Score: Determine whether the graph will open up or down, find the coordinates of the vertex, find the line of symmetry and graph each. 1. y=(X—1)2+2 ! c l (1,2) :Vfg‘: a. Find the vertex b. Find the line of symmetry X = \ . _ __- I c. Determine the x-intercepts by 1- Solving ()(—1)2 +2 = 0 OH) = ‘2 No x-fnt - «(x—0‘ = tFZ d. Graph the function X‘i 1"- 5A5; X: it Hi 2. f(X)=X2 —2X—3 Find the vertex ( I ) «4) . Find the line of symmetry X = I -_,_1__.__.VJ_H-V.I i Determine the x-intercepts by Solving x2 —2X-3=0 : .. a O I M h l r I (x 33:520-, (5,0) (-00) _ _ _ . g , d. Graph the function ’ -- ~ -. 3. y = —X2 + 3 a. Find the vertex (0,3) Find the line of symmetry X = 0 Determine the x-intercepts by Solving —X2 + 3 = 0 x‘= 5 Graph the function (510) (“(310) u CM PM (3- ih pour calamari-crib 36+ "HR. and‘ Va U: to male, pioH’thj it on +hc. graph eASI‘er'. 30 Math 35 Name: In Class Activity Date: Section 10.5-10.6 Score: 4. f(X)=2X2+4X—6 -b -4 la. Find the vertex (__/I _9) ——.3 _.—- 974. 4-9 ’ ” 20(4) = b. Find the line of symmetry x: _. I 4/ +414) *0 . - a? - 81.4, c. Determine the x—Intercepts by -_ _ -5 Solving 2X2+4X—6=0 07(X2+é7x‘3)30 ‘ ‘ (200‘s) OH) = 0 x = —3 , / ' d. Graph the function (_3/ 0) [II o) 5. f(x) = (X+ 3)2 —4 a. Find the vertex ( A 3 _ ) fire, “but _ J4 ' - - : r “ ’1 a a b. Fmd the lme of symmetry X g .. 3 g 1 ’1? A} I c. Determine the x-intercepts by ._ , 41¥ . Solving (X+3)2-4 :0 (Xi-3)“: 4 , f : i (@3733? =zv'z7‘ i___‘:‘_:dj:jp. _ . — ' i d. Graph the function ng 1: 1:2 .1 x+3= x+3='2 6. The cost in dollars of producing x items is modeled by the quadratic function C(x)=500-24x+1.5x2. a. What is the cost of producing 25 items? cm 6 (:5) =500 “441475) + 1.5495? = $937.50 .27 cost: b. How many items should be produced to minimize the cost? What is the $33150 - - +5 produce minimum cost? _ V ‘95 n‘cms. 404 ' ' ' a! any. ’14:): is maxamqm 0r minimum ‘ _ fitting/a. 50, [$3014 find ‘UVc Vcr¥cx,fi7m ml! 3 x 3”}: you {11: minimum. 3—2. = = 9 So) 8 hicms can bcézgzdeC/C flyfisoowwyfll-EZS’)‘ => 39,”; w“ of 4 . = 4M ( Y, 404) ...
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This note was uploaded on 01/13/2012 for the course MATH 35 taught by Professor Janetfrewing during the Fall '11 term at Riverside Community College.

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IA10.5-10.6Sol - Name: Math 35 In Class Activity Date:...

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