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Warm Up. Solve. #2. Solve. Solve. #3. #1. #4. The sum of twice a number and -6 is 9 more than the opposite of the number. Find the number. Warm Up. #1. Warm Up. #2. Warm Up. Solve. #3. Warm Up. #4.
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Warm Up Solve #2 Solve Solve #3 #1 #4 The sum of twice a number and -6 is 9 more than the opposite of the number. Find the number.
Warm Up #1
Warm Up #2
Warm Up Solve #3
Warm Up #4 The sum of twice a number and -6 is 9 more than the opposite of the number. Find the number.
Homework Practice Test 1 Find the missing values and (if linear) write an equation for each function: 3. 1. Yes y = 4x + 7 Yes y = -8x + 12 Linear: _______ Equation: ___________ Linear: _______ Equation: ___________ 2. No N/A Linear: _______ Equation: ___________
Homework Practice Test 1 Solve. Define a variable, write an equation and solve. a = -9 6. The sum of two numbers is 102. The second number is three less than two times the first. Find the numbers. 4. x + 2x – 3 = 102 1st # = x 2nd # = 2x - 3 1st # = 35 2nd # = 67 b = -80 3x – 3 = 102 7. 3x = 105 5. The perimeter of a selected triangle is 114 inches. If one side is 4 less than three times the first and the other is two less than twice the first, what are the lengths of each side? c = 5 8. 6x – 6 = 114 1st side = x 2nd side = 3x – 4 3rd side = 2x - 2 1st side = 20 2nd side = 56 3rd side = 38 6x = 120
Test Practice Find the missing values and (if linear) write an equation for each function (4, 5) and (17, 41) y = 3x - 7 (4, -7) and (22, -79) y = -4x + 9
Test Practice Find the missing values and (if linear) write an equation for each function (4, 4) and (7, 1) NOT linear – yes there is a pattern, but there is no constant rate of change (4, 25) and (22, 61) y = 2x + 17
Test Practice Define a variable, write an equation and solve. Bubba is told to finish filling a huge library bookcase. The table below shows how many books are on the bookcase (b) after each minute (t) Bubba worked. 1. Write an equation (function) that describes the number of books (b) on the bookcase after t minutes b = 16t + 246 2. If the bookcase holds 902 books, how long will it take Bubba to fill it? 656 = 16t 902 = 16t + 246 41 minutes! 41 = t
Test Practice #3 #2 #1 #6 #5 #4