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Do Now 10/05/09 Take out HW from Friday. Take out HW from Friday. Text p.73, #12-48 evens Text p.73, #12-48 evens Copy HW in your planner. Copy HW in your planner. Punchline worksheets 30 & 34 Punchline worksheets 30 & 34 Quiz sections 2.1 – 2.3 Thursday Quiz sections 2.1 – 2.3 Thursday Be ready to copy POTW #5 Be ready to copy POTW #5

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Parts of an Expression 3x + 17 – x – 24 1) List the terms of the expression. 2) List the coefficients of the expression. 3) List the like terms of the expression. 4) List the constant terms of the expression. 5) Simplify the expression. 3x, 17, -1x, -24 3, -1 3x & -1x, 17 & -24 17, -24 2x + (-7) or 2x – 7 In your notebook, list the terms, like terms, coefficients, and constants of the expression below. Then simplify the expression and explain in words what you combined together. 3x + 17 + (-1x) + (-24)

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Homework Text p.73, #12-48 evens 12) 16 14) -42 16) -260 18) -20 20) 392 22) -633 24) 24.8 26) -65.7 28) 4x - 8 30) -6 +2r 32) 12p + 6 34) 99 – 54m 36) 435 players 38) (12x – 8) units² 40) (39 – 13y) units² 42) -42 44) a) W = 1.9a + 1.9b + 1.9c b) 585 lb 46) x² + 9x 48) 2u² - 7u

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Objective SWBAT practice simplifying variable expressions and the distributive property

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Simplifying an Expression Write expression as a sum Opp-Opp COLLECT LIKE TERMS 2n – 9 – 4n + 3 2n – 9 – 4n + 3 -2n + (-6) -2n + (-6) 2n + (-9) + (-4n) + 3 2n + (-9) + (-4n) + 3 2n + (-4n) + (-9) + 3 2n + (-4n) + (-9) + 3 Commutative Property -2n – 6 -2n – 6 or

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Distributive Property Multiply across Parentheses 3(x + 7) = 3(x) + 3(7) = 3x + 21 -4(y – 2) = -4(y) + (-4)(-2) = -4y + 8

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Simplify the Expression A. 3a + 2(a + 7) B. 5(b – 9) + 6b – 7 C. 2x – (4x + 9) D. -w – 2(3w – 13) A).3a + 2a + 14 5a + 14 B). 5b – 45 + 6b – 7 11b – 52 or 11b + (-52) 11b – 52 or 11b + (-52) C). 2x – 4x – 9 -2x – 9 or -2x + (-9) D). –1w + (-6w) + 26 -7w + 26 -7w + 26

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What Is the Worlds Saddest Candy? What Do They Call the International Hula Hoop Championships?

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Homework -Punchline worksheets #30 & #34

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