Sec. 4.3 (Part 1) - Elimination Method (Alg 1)

​Sec. 4.3: Solving Systems Using

Elimination (Part 1)

​Materials Needed

​1) Chapter 4 Note Packet

2) Pencil

3) Calculator

4) Focus and an "I can do it" mentality!​

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Some text here about the topic of discussion

​Please turn to p. 12 in your note packet and fill in your notes as you watch the video on the next slide.

​Please complete the next three problems on p. 17 of your note packet. This is an extra practice page.

Multiple Choice

• (1, 4)

• (4, 1)

• (1, -4)

• (-4, 1)

Multiple Choice

• (-7, -1)

• (1, 7)

• (-1, -7)

• (7, 1)

Multiple Choice

Given the system of equations, what is the value of x + y? (Find x and y first using the elimination method, then add them together.)

• 2

• 8

• 6

• 0

​Please continue filling in your notes on p. 12 as you watch the video on the next slide.

​Please complete the next two problems on p. 17 of your note packet.

Multiple Choice

Solve the system using elimination.  

−8x − 10y = 20

−8x − 6y = −4 

• Infinite number of solutions  
• (6, 5) 
• (−6, −5) 
• (5, −6) 

Multiple Choice

Solve the following using elimination.
4x+4y=4
3x+4y=10

• (7,-6)
• (-6,7)
• (6,7)
• (7,6)

​Please continue filling in your notes on p. 12 as you watch the video on the next slide.

​After completing the three problems on p. 13 in your notes, enter your answers on the next three slides.

Multiple Select

Please rate your effort in understanding today's lesson.

• I took the notes and tried all the problems.

• I took the notes but did not give my best effort in trying to solve the problems on my own.

• I took the notes but didn't really try to understand the concepts. Therefore, I didn't know how to even start the problems.

• I did my own thing during class.

Multiple Select

Please rate your understanding of today's lesson.

• I could ace a quiz over this material right now.

• I know how to eliminate a variable but don't understand how to find the second variable.

• I understand but was confused when having to multiple an equation by -1.

• I am confused after today's lesson.

​Thanks for your participation today!