5.4 inequalities
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5.4 inequalities

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5.4 inequalities 5.4 inequalities Document Transcript

  • Inequalities 4_2.notebook March 21, 2013 Quiz IM 2 1.  How do you feel about the quiz? 2.  Were you ready for this quiz? If yes, what did you do to get ready? If no, how come? 3.  What are you going to do to prepare for the test? 4.  What are you doing over spring break? 5.  Is there anything you want to know about me? 1
  • Inequalities 4_2.notebook March 21, 2013 Homework page 373 # 1­4, 6.a)&d), 7, 8,10, 11, 13, 15 2
  • Inequalities 4_2.notebook March 21, 2013 5.4 Solving systems of equations graphically What is a system of equations? Ex) y = 2x 2  ­ 6 y = x + 4  There are three types of systems 1. linear ­ linear 2. linear ­ quadratic 3. quadratic ­ quadratic What does the solution to the system of equations look like? 3
  • Inequalities 4_2.notebook March 21, 2013 The solution satisfied all equations 13. b) 2x ­ 3y < 6; for x = 0, y < 0 test point (0,­3) 4
  • Inequalities 4_2.notebook March 21, 2013 How many solutions does the system have? x + y = 5 x + y = 3 2x + 2y = 6 x + y = 3 x + y = 3 x ­ y = ­1 5
  • Inequalities 4_2.notebook March 21, 2013 Pg 388 1. a) 6
  • Inequalities 4_2.notebook March 21, 2013 Question 2 7
  • Inequalities 4_2.notebook March 21, 2013 5.5 Solving systems of equations algebraically Example 1 What type of system is this? Solve this system y = ­2x 2  + 10 x­ 2y = ­15 8
  • Inequalities 4_2.notebook March 21, 2013 Page 395 Example 3 9
  • Inequalities 4_2.notebook March 21, 2013 Homework  page 389 # 2.a), 5 page 396 # 1­5, 8, 9, 10, 11 10