Warm Up : Quarterly Assessment 1

Warm Up # 1 Which property is illustrated below? ( 4 + 5) = (9 + 4) = (2 + 3) = 4 + ( 3 +2) What is the reciprocal of ____? a) ¾ = b) – ½ = c) 5 ¾ =

Warm Up # 1B Which property is illustrated below? 1.9 x ( 6 x 15) = 9 x (15 x 6) 2.2 x 45 = 45 x 2 3.(14 + 2) + 3 = 14 + ( 2 +3) What is the reciprocal of ____? a) 5¾ = b) – 2 = c) ¼ =

Warm Up #2 1.Jack and Jill plan to share the cost of buying a car that cost $3000. If Jill agrees to pay $500 more than Jack, what is the amount that Jack will pay? 2.Give me 2 example of associative property of addition. 3.Give me 2 example of commutative property of addition. 4.Give me 2 example of Identity property of addition.

Warm Up #2B 1.Jay and Roy plan to share the cost of buying a flat screen TV that cost $4500. If Roy agrees to pay $800 more than Jay, what is the amount that Jay will pay? 2.Give me 2 example of associative property of multiplication. 3.Give me 2 example of commutative property of multiplication with parenthesis. 4.Give me 2 example of Identity property of multiplication.

Warm Up # 3 1) 1) Which of the following equations is equivalent to 5(4x – 8) =30? a)20x – 3 = 30 b) 20x – 13 = 30 c) 20x – 35 = 30 d) 20x – 40 = 30 2) 2) Solve –6m + 11m = 80. a)15 b) 16c) 17d) -16 3) 3) Which of the following equations is equivalent to 2(6m + 4) = 10m – m? a)12m + 4 = 9mb) 12m + 8 = 9m c) 12m + 4 = 9d) 12m + 8 = 9

Warm Up # 3B 1) 1) Which of the following equations is equivalent to 6(4x – 8) =30? a)24x – 2 = 30 b) 24x – 14 = 30 c) 24x – 48 = 30 d) 24x – 42 = 30 2) 2) Solve –8m + 15m = 112. a)15 b) 16c) 17d) -16 3) 3) Which of the following equations is equivalent to 2(8m + 7) = 10m – m? a)10m + 14 = 9mb) 16m + 9 = 9m c) 16m + 14 = 9md) 16m + 14 = 9

Warm Up # 4 1) Jack’s baseball team won 5 more games than Bob’s. If Bob’s team won between 9 and 13 games, what can you conclude about the number of games won by Jack’s team? a) It won between 4 and 8 b) It won between 9 and 18 c) It won between 14 and18 d) It won between 14 and 15 2) If w and z are opposites, which of the following relationships is true? a) w = z b) w + z = 1c) w + z = 0 d) wz = 1

Warm Up # 4B 1) Jack’s baseball team won 7 more games than Bob’s. If Bob’s team won between 9 and 13 games, what can you conclude about the number of games won by Jack’s team? a) It won between 2 and 4 b) It won between 9 and 20 c) It won between 13 and16 d) It won between 16 and 20 2) If x and y are opposites, which of the following relationships is true? a) x = -y b) x + y = 1c) x + -y = 0 d) xy = 1

Warm Up # 5 1.8x + 6 = (2x – 4) = m + 2m = 55 What is the reciprocal of ….? ¾ x y+ 2x X – 3y

Warm Up #5B 1)Tim has a total of 1000 basketball cards. He has filled 4 identical albums and has 200 cards remaining. How many cards are in each album. 2.4x + 30 = (5x – 5) = m + 20m = 65

Warm Up #6 1)4x – 2(x + 3) = 30 2)2x – 2(-2x + 5) = 20 3)5x – (-2x – 5) = 40 4)Which equation is equivalent to –9(x – 5) = 12x? a)-9x + 45 = 12xb)-9x + 5 = 12x c) -9x – 45 = 12xd) -9x – 5 = 12x

Warm Up # 6B 1)Which relation below is a function? a) b) c) d) 2) Graph the following… a)y = 2b) y = -3 c) y = 4d) y = 1 e) x = 1f) x = -2g) x = 3h) x = 2XY XY XY XY

Warm Up # 7 1) Which of the following statements is never true? a)|-3x| = 3|x|b) -3|x| = |3x| c)|-3x| = |3x|d) |-3x| = |-3||x| 2) Which value of x is a counterexample to the conditional statement below? a) 9b) 81 c) -9 d) -81 If x 2 = 81, then x = 9

Warm Up #7B 1)Which set is the domain and range of the relation graphed above?

Warm Up # 8 Does the graph below represent a function?

Warm Up # 8B 1) Which ordered pair represents the x-intercept of the graph of y= ½ x + 5? a)(5,0) b) (-5,0)c) (10,0)d) (-10,0) 2) Which of the following points lies on the graph of the equation 2x−6y = 24? a) (3, 4) b) (12,0 ) c) (0,12)d) (4,3)

Warm Up # 9 1) The length of a rectangle is Four times its width. The perimeter is 140 feet. What is the width of the rectangle in feet? 2) The length of a rectangle is three times its width. The perimeter is 176 feet. What is the width of the rectangle in feet? 3) The length of a rectangle is Four times its width. The perimeter is 750 feet. What is the width of the rectangle in feet?

Warm Up 9B The installation cost and monthly monitoring fee of a security system are listed below for two companies. Ace Systems charges $327 for installation and $204 per month for monitoring the system. Zero Entry charges $535 for installation and $188 per month for monitoring the system. Write a variable expression for the total cost of a security system installed and monitored by Ace Systems. 1.Write a variable expression for the total cost of a security system installed and monitored by Zero Entry. Define the variable. Ace Systems: Zero Entry:

Warm Up # 10 1.Mrs. Clark will sign a contract to have a security system installed and monitored for 12 months. Calculate the total cost each company will charge for this service. Show all your work. Ace Systems: Zero Entry: Ace Systems charges $327 for installation and $204 per month for monitoring the system. Zero Entry charges $535 for installation and $188 per month for monitoring the system.

Warm Up # 10B 1.If Mrs. Clark signs a contract to have a security system installed and monitored for 18 months, which company has a lower total cost? Provide an explanation or show all your work. Ace Systems charges $327 for installation and $204 per month for monitoring the system. Zero Entry charges $535 for installation and $188 per month for monitoring the system.