3. The product of x and y is the same for each point, 7.1 Warm Up Practice A. 1. inverse variation 2. inverse variation

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1 . a. P = b. A = c. = d. 9 t. a. A = 0.5 b. = c. t d. $ a. A = b. = c. 5 t d. $5. Chapter 7 7. Start Thinkin The quotient o and is the same or each point, =. The raph is the line. =. The product o and is the same or each point, =. The raph is not a line but curved The product o and is the same or each point, =. The raph is not a line but curved. 7. Warm Up Cumulative Review Warm Up,. (, ), (, ) 7. Practice A., inverse variation. inverse variation. direct variation. direct variation 5. neither. direct variation 7. inverse variation. neither 9. direct variation 0. inverse variation = ; = = ; = 0 0. = ; = incorrectl used the equation a, = which implied a direct variation between and, not inverse variation; = a ()() 5 = a a = 0 0 So, = sons A7 Alebra Copriht Bi Ideas Learnin, LLC

2 7. Practice B inverse variation. inverse variation. direct variation. neither 5. direct variation. inverse variation 7. direct variation. inverse variation 9. neither 0. inverse variation = ; = 0 0 = ; = () ( ) approaches 0 as approaches both and. 7. Warm Up = ; = The inal equation iven is a direct variation, not an inverse variation; = a = a a = So, =. 5.. amperes. 7. Enrichment and Etension 5 =. w =. h.7 m 5.. As pressure increases, volume decreases; n = PV RT 7. Puzzle Time THE SPACE BAR 7. Start Thinkin () ( ) approaches as approaches 0 rom the let and ( ) approaches as approaches 0 rom the riht. Copriht Bi Ideas Learnin, LLC Alebra A79

3 5.... The raph o lies arther rom the aes than the raph o. Both raphs lie in the irst and third quadrants and have the same asmptotes, domain, and rane. 7. Cumulative Review Warm Up maimum: 5. maimum: 7. Practice A. minimum: 7. The raph o h is a relection in the -ais o the raph o, and lies arther rom the aes than the raph o. The raphs have the same asmptotes, domain, and rane. domain: all real numbers ecept 0, rane: all real numbers ecept 5. The raph o h lies arther rom the aes than the raph o. Both raphs lie in the irst and third quadrants and have the same asmptotes, domain, and rane. domain: all real numbers ecept 0, rane: all real numbers ecept A0 Alebra Copriht Bi Ideas Learnin, LLC

4 . 0. domain: all real numbers ecept, rane: all real numbers ecept 0 domain: all real numbers ecept, rane: all real numbers ecept 7. domain: all real numbers ecept, rane: all real numbers ecept 0 domain: all real numbers ecept, rane: all real numbers ecept. domain: all real numbers ecept, rane: all real numbers ecept 0 domain: all real numbers ecept, rane: all real numbers ecept 9.. domain: all real numbers ecept 5, rane: all real numbers ecept 0 domain: all real numbers ecept, rane: all real numbers ecept 5 Copriht Bi Ideas Learnin, LLC Alebra A

5 ( ) = 5. domain: all real numbers ecept numbers ecept, rane: all real translation units riht and units up 9. ( ) = 5 domain: all real numbers ecept, 5 rane: all real numbers ecept 5. ( ) = translation units let and 5 units up 0. ( ) = 0 5 translation unit let and units up 7. ( ) = 7 translation 5 units riht and unit up ( ) = 9 0 translation units riht and units up translation 9 units riht and unit up A Alebra Copriht Bi Ideas Learnin, LLC

6 . a. 0 students. b. The averae cost approaches $50... even 0 The raph o h is a relection in the -ais o the raph o, and lies arther rom the aes than the raph o. The raphs have the same asmptotes, domain, and rane.. even 5. The raph o lies closer to the aes than the raph o. Both raphs lie in the irst and third quadrants and have the same asmptotes, domain, and rane.. odd 7. Practice B 5. domain: all real numbers ecept 0, rane: all real numbers ecept The raph o lies arther rom the aes than the raph o. Both raphs lie in the irst and third quadrants and have the same asmptotes, domain, and rane. domain: all real numbers ecept, rane: all real numbers ecept 0 Copriht Bi Ideas Learnin, LLC Alebra A