Skills Practice Workbook - Glencoe
Skills Practice Workbook - Glencoe Skills Practice Workbook - Glencoe
16–1 Skills Practice Solve each system of equations by graphing. 1. y � x 2. y � 2x � 4 3. y � x � 1 y ��x � 2 (1, 1) y ��x � 1 (�1, 2) y ��x � 5 (�2, �3) y y � �x � 2 y � x O (1, 1) x (�1, 2) 4. y � x � 5 5. y � x � 4 6. y ��x y ��x � 1 (3, �2) y ��x � 2 (�3, 1) y ��3x � 4 (2, �2) O y y � �x � 1 y � x � 5 x (3, �2) 7. y � 2x � 1 8. y � x � 6 9. y � x � 1 y � 3x � 2 (�1, �1) y ��2x � 6 (4, �2) y ��x � 5 (3, 2) y y � 3x � 2 y � 2x � 1 O x (�1, �1) O 10. y � x � 5 11. y � x � 1 12. y ��x � 1 y ��3x � 1 (�1, 4) y � 2x � 4 (�3, �2) y ��2x � 5 (4, �3) y y � x � 5 (�1, 4) y � �3x � 1 O x NAME DATE PERIOD Solving Systems of Equations by Graphing © Glencoe/McGraw-Hill 91 Geometry: Concepts and Applications y y � 2x � 4 y y � x � 4 y � �x � 1 (�3, 1) x O x y � �x � 2 y y � �2x � 6 O (4, �2) y � x � 6 y y � 2x � 4 x y � x � 1 O x (�3, �2) y y � x � 1 O x (�2, �3) y � �x � 5 y y � �3x � 4 O y � �x y y � �x � 5 x (2, �2) (3, 2) O y � x � 1 O y x y � �2x � 5 y � �x � 1 (4, �3) x
16–2 NAME DATE PERIOD Skills Practice Solving Systems of Equations by Using Algebra Use substitution to solve each system of equations. 1. y � 7 2. y ��3 3. y � x x � 2y � 5 (7, �1) x � y � 8 (5, �3) 2x�y�15 (5, 5) 4. y � x � 7 5. y � x � 2 6. y � x � 1 2x � 3y � 19 3x � 2y ��4 4x � 3y � 4 (8, 1) (0, 2) (1, 0) 7. 3x � y � 2 8. �2x � y � 0 9. 4x � y � �13 2x � 2y � 8 3x � y � 4 2x � 3y � �11 (�1, 5) (4, 8) (�2, �5) Use elimination to solve each system of equations. 10. x � y � 7 11. x � y � 4 12. x � y ��3 x � y � 1 2x � y ��13 3x � y ��5 (4, 3) (�3, 7) (�2, �1) 13. x � y � 5 14. x � y ��2 15. x � y � 2 2x � y � 4 �2x � y ��1 �3x � y ��4 (3, �2) (3, 5) (1, 1) © Glencoe/McGraw-Hill 92 Geometry: Concepts and Applications
- Page 45 and 46: 7-3 NAME DATE PERIOD Skills Practic
- Page 47 and 48: 8-1 Quadrilaterals NAME DATE PERIOD
- Page 49 and 50: 8-3 NAME DATE PERIOD Skills Practic
- Page 51 and 52: 8-5 Trapezoids NAME DATE PERIOD Ski
- Page 53 and 54: 9-2 Similar Polygons Skills Practic
- Page 55 and 56: 9-4 Complete each proportion. Skill
- Page 57 and 58: 9-6 Skills Practice Complete each p
- Page 59 and 60: 10-1 Naming Polygons Identify each
- Page 61 and 62: 10-3 Areas of Polygons NAME _______
- Page 63 and 64: 10-5 24 in. 12 cm 18 cm 4 ft 2.5 cm
- Page 65 and 66: 10-7 Tessellations NAME ___________
- Page 67 and 68: 11-2 NAME DATE PERIOD Skills Practi
- Page 69 and 70: 11-4 Inscribed Polygons Use �O to
- Page 71 and 72: 11-6 Area of a Circle NAME DATE PER
- Page 73 and 74: 12-2 Skills Practice Surface Areas
- Page 75 and 76: 12-4 NAME DATE PERIOD Skills Practi
- Page 77 and 78: 12-6 Spheres NAME DATE PERIOD Skill
- Page 79 and 80: 13-1 NAME DATE PERIOD Skills Practi
- Page 81 and 82: 13-3 Skills Practice 30°-60°-90°
- Page 83 and 84: 13-5 Skills Practice Sine and Cosin
- Page 85 and 86: 14-2 Skills Practice Tangents to a
- Page 87 and 88: 14-4 NAME DATE PERIOD Skills Practi
- Page 89 and 90: 14-6 NAME DATE PERIOD Skills Practi
- Page 91 and 92: 15-2 Deductive Reasoning NAME DATE
- Page 93 and 94: 15-4 Complete each proof. 1. If m
- Page 95: 15-6 Coordinate Proofs Skills Pract
- Page 99 and 100: 16-4 Reflections NAME DATE PERIOD S
- Page 101: 16-6 Dilations Skills Practice Find
16–2<br />
NAME DATE PERIOD<br />
<strong>Skills</strong> <strong>Practice</strong><br />
Solving Systems of Equations by Using Algebra<br />
Use substitution to solve each system of equations.<br />
1. y � 7 2. y ��3 3. y � x<br />
x � 2y � 5<br />
(7, �1)<br />
x � y � 8<br />
(5, �3)<br />
2x�y�15 (5, 5)<br />
4. y � x � 7 5. y � x � 2 6. y � x � 1<br />
2x � 3y � 19 3x � 2y ��4 4x � 3y � 4<br />
(8, 1) (0, 2) (1, 0)<br />
7. 3x � y � 2 8. �2x � y � 0 9. 4x � y � �13<br />
2x � 2y � 8 3x � y � 4 2x � 3y � �11<br />
(�1, 5) (4, 8) (�2, �5)<br />
Use elimination to solve each system of equations.<br />
10. x � y � 7 11. x � y � 4 12. x � y ��3<br />
x � y � 1 2x � y ��13 3x � y ��5<br />
(4, 3) (�3, 7) (�2, �1)<br />
13. x � y � 5 14. x � y ��2 15. x � y � 2<br />
2x � y � 4 �2x � y ��1 �3x � y ��4<br />
(3, �2) (3, 5) (1, 1)<br />
© <strong>Glencoe</strong>/McGraw-Hill 92 Geometry: Concepts and Applications
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