1. 1. 2. Graph: Lesson 3.1& 3.2, Systems Most Missed on Test Write an Inequality for the graph: 3. ANSWER 4. ANSWER

2. Quick Answers Check Homework

3. Lesson 3.1-Solve By Graphing Lesson 3.2-Solve Algebraically Systems 3

4. Where the lines intersect

5. 3 ways to kill a Vampire 1. Stake to the heart 2. Sunlight …unless your Edward 3. Garlic & a Cross

6. 3 ways to solve Linear Systems 1. By Graphing 2. By Substituting 3. Eliminating

7. -graph both lines, -then find where the lines intersect Equation 1 Equation 2

10. -1 st make sure one equation has a variable isolated In this case, one already is: x = -2y + 2 -2 nd Substitute the expression into other equation Equation 1 x = -2y + 2 Equation 2 3 + y = 16 -2y + 2 x 3( )+ y = 16 -6y + 6 + y = 16 -5y + 6 = 16 -5y = 10 y = -2 (, )y -2 -3 rd Substitute answer into one of the equations 3x + = 16y (-2) x = 6 x 6

11. -3 rd Substitute answer into one of the equations -1 st make sure one equation has a variable isolated -2 nd Substitute the expression into other equation

12. + 0- y= 3 -1y = 3 y = 3x + y = -9 -3 3x + = -9 3x -3 = -9 x = -2 (-2,-3)3x = -6

13. - 0-6y=-24 -6y =-24 y = 3x + 2y = 26 44 3x + 2 = 26 3x + 8 = 26 3x = 18 (6, 4) 3x + 2y = 26 ( ) x = 6

14. Equation 1 3x – 3y = 21 -Multiply Equation 1 by 2 6x – 6y = 42 8x + 6y = -14 Equation 2 8x + 6y = -14 Equation 1 (2)3x – (2)3y = (2)21 + 14x+ 0= 28 14x = 28 x = 3x - 3y = 21 22 3 - 3y = 21 6 - 3y = 21 -3y = 15 (2, -5) y = -5 ( )

18. Classwork: SW: pg.339, 14-24 evenpg.339, 14-24 even pg.341, 1-17 eoo

19. Classwork: SW: pg.339, 14-24 evenpg.339, 14-24 even pg.341, 1-17 eoo