warm up classify the #’s 1 and 2 as true, false, or open? 1. 24 + 18 = 20 + 22 2. 2x – 14 = 54...

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Warm Up Classify the #’s 1 and 2 as true, false, or open? 1. 24 + 18 = 20 + 22 2. 2x – 14 = 54 3. Is x = 6 a solution of the equation 32 = 2x + 12. 4. An art student wants to make a model of the Mayan Great Ball Court in Chichén Itzá, Mexico. The length of the court is 2.4 times its width. The length of the

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Page 1: Warm Up Classify the #’s 1 and 2 as true, false, or open? 1. 24 + 18 = 20 + 22 2. 2x – 14 = 54 3. Is x = 6 a solution of the equation 32 = 2x + 12. 4

Warm Up

Classify the #’s 1 and 2 as true, false, or open?1. 24 + 18 = 20 + 22

2. 2x – 14 = 54

3. Is x = 6 a solution of the equation 32 = 2x + 12.

4. An art student wants to make a model of the Mayan Great Ball Court in Chichén Itzá, Mexico. The length of the court is 2.4 times its width. The length of the student’s model is 54 in. What should the width of the model be?

Page 2: Warm Up Classify the #’s 1 and 2 as true, false, or open? 1. 24 + 18 = 20 + 22 2. 2x – 14 = 54 3. Is x = 6 a solution of the equation 32 = 2x + 12. 4

Cornell Notes

Page 3: Warm Up Classify the #’s 1 and 2 as true, false, or open? 1. 24 + 18 = 20 + 22 2. 2x – 14 = 54 3. Is x = 6 a solution of the equation 32 = 2x + 12. 4

Equations Continued

Section 1.8 B

Page 4: Warm Up Classify the #’s 1 and 2 as true, false, or open? 1. 24 + 18 = 20 + 22 2. 2x – 14 = 54 3. Is x = 6 a solution of the equation 32 = 2x + 12. 4

Objective TSWBAT find solutions to equations.

Page 5: Warm Up Classify the #’s 1 and 2 as true, false, or open? 1. 24 + 18 = 20 + 22 2. 2x – 14 = 54 3. Is x = 6 a solution of the equation 32 = 2x + 12. 4

Example 1 What is the solution of each equation? Use

mental math.1. x + 7 = 13

2.

3. x – 4 = 9

126

x

Page 6: Warm Up Classify the #’s 1 and 2 as true, false, or open? 1. 24 + 18 = 20 + 22 2. 2x – 14 = 54 3. Is x = 6 a solution of the equation 32 = 2x + 12. 4

Example 2 What is the solution of 3n + 5 = 26? Use

a table.n 3n + 5 Value of 3n + 5

5 3(5) + 5

6 3(6) + 5

7 3(7) + 5

8 3(8) + 5

Page 7: Warm Up Classify the #’s 1 and 2 as true, false, or open? 1. 24 + 18 = 20 + 22 2. 2x – 14 = 54 3. Is x = 6 a solution of the equation 32 = 2x + 12. 4

Example 3

What is an estimate of the solution of -6x + 5 = 21?n -6x + 5 =

21Value of -6x + 5 =

21

-5 -6(-5) + 5

-4 -6(-4) + 5

-3 -6(-3) + 5

-2 -6(-2) + 5

Page 8: Warm Up Classify the #’s 1 and 2 as true, false, or open? 1. 24 + 18 = 20 + 22 2. 2x – 14 = 54 3. Is x = 6 a solution of the equation 32 = 2x + 12. 4

Assignment Pg. 56-58 # 29-48, 62-64, 67-70

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1.6 Classify Polygons You will classify polygons Essential Question: How do you classify polygons?

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4(x 2 – 2x + ? ) + y 2 = 8 + 4( ? ) EXAMPLE 6 Classify a conic Classify the conic given by 4x 2 + y 2 – 8x – 8 = 0. Then graph the equation. SOLUTION Note

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