A S7.3 Linear System by Adding and Subtracting.notebook · A S7.3 Linear System by Adding and...
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Transcript of A S7.3 Linear System by Adding and Subtracting.notebook · A S7.3 Linear System by Adding and...
A S7.3 Linear System by Adding and Subtracting.notebook
1
February 24, 2017
Sep 75:46 AM
Today's Lesson: Let us remember we are in the holy presence of God* Section 7.3 Solving Systems by Adding or Subtracting* Quiz Thursday Next week (sections 7.17.4) March 2ndInstructions: Person doing pray to the podium
Assign #66 answers: 1 minute out of 3/44) (1, 1) 6) (13, 6)
8) (3, 22) 10) (8, 7)
* We'll Grade Assign #66 after you copy the checklist. * Copy the following checklist into you notes (sect 7.3) 3 minAdding or Subtracting Checklist (pg 444 is similar): Step 1: Add or Subtract in equations to eliminate one variableStep 2: Solve for remaining variableStep 3: Substitute into either original equation to find eliminated variable
Note: you may have to rearrange the equations to line up the variables so you can add or subtract them.
Sep 75:46 AM
Homework Examples: Solve the linear system:2x + y = 94x y =15
Step 1:
Step 2:
Step 3:
Solution ( , )(1,11)
Section 7.3 Solve Systems by Adding or Subtracting I can solve systems of linear equations by Adding or Subtracting
Step 1: Add or Subtract in equations to eliminate one variableStep 2: Solve for remaining variableStep 3: Substitute into either original equation to find eliminated variableNote: you may have to rearrange the equations to line up the variables so you can add or subtract them.
2x + y = 94x y =15
Sep 75:46 AM
Homework Examples: Solve the linear system:11x 7y = 1411x 22y=44
Step 1:
Step 2:
Step 3:
Solution ( , )
(0,2)
Section 7.3 Solve Systems by Adding or Subtracting I can solve systems of linear equations by Adding or Subtracting
Step 1: Add or Subtract in equations to eliminate one variableStep 2: Solve for remaining variableStep 3: Substitute into either original equation to find eliminated variableNote: you may have to rearrange the equations to line up the variables so you can add or subtract them.
11x 7y = 1411x 22y=44
Sep 75:46 AM
Homework Examples: Solve the linear system:4x 3y = 2x = 8 3y
Step 1:
Step 2:
Step 3:
Solution ( , )
(2,2)
Section 7.3 Solve Systems by Adding or Subtracting I can solve systems of linear equations by Adding or Subtracting
Step 1: Add or Subtract in equations to eliminate one variableStep 2: Solve for remaining variableStep 3: Substitute into either original equation to find eliminated variableNote: you may have to rearrange the equations to line up the variables so you can add or subtract them.
Sep 75:46 AM
Homework Examples: Solve the linear system:2y = 5x + 45x 6y = 8
Step 1:
Step 2:
Step 3:
Solution ( , )
(1, 1/2)
Section 7.3 Solve Systems by Adding or Subtracting I can solve systems of linear equations by Adding or Subtracting
Step 1: Add or Subtract in equations to eliminate one variableStep 2: Solve for remaining variableStep 3: Substitute into either original equation to find eliminated variableNote: you may have to rearrange the equations to line up the variables so you can add or subtract them.
Sep 75:46 AM
homework: due upon request (see syllabus) Assign Date Due # assigned date Description
new semester and new chapter #55 1/12 1/__ Ch 6 Pink Outline#56 1/13 1/__ Sect 6.1, pg 359, #1, 2, 626#57 1/18 1/__ Sect 6.2, pg 366 #326, 3033#58 1/__ 1/__ Sect 6.3, pg 372, #325, 2932#59 1/__ 1/__ Sect 6.4, pg 384, #326 #60 1/__ 1/__ Ch 4 graphing review#61 1/__ 1/__ Sect 6.7 Graph 2variable inequalities WS#62 2/__ 2/__ Sect 6.5, pg 393, # 326#63 2/__ 2/__ Ch 6 Test Review WS (5pages...)
New Chapter#64 2/16 2/21 Ch 7 Pink Outline#65 2/21 2/22 Sect 7.1 Solve by graphing WS #66 2/22 2/23 Sect 7.2 page 439, #311#67 2/24 2/27 Sect 7.3 page 447, #322Any Questions?