10.16 (Updated)

Graphing

Graph the following equation

$$4x-3y=21$$

Multiple Choice

Lap 1: Andrea wants to determine the solution of the system graphically. 

$$y=-2x-4$$

$$y=x+5$$

What is the y – coordinate of the solution?

• A

• B

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• D

Multiple Choice

Cyrus wrote the following system.

Which statement about the system is true?

y = 2x - 1

2y = 4x - 6

• A

• B

• C

• D

Multiple Choice

Lap 3: A system of linear equation is shown. Which statement about the system is true?

• A

• B

• C

• D

Multiple Choice

What is the solution to the system?

2x - 3y = -1

y = x - 1

• A

• B

• C

• D

Multiple Choice

Annotate: There are 15 plates in a kitchen cabinet. The diameter of each plate is either 7 inches or 12 inches. The diameter of all 15 plates combined is 140 inches. Which system of equations can be used to find the number of 7-inch plates, x, and the number of 12-inch plates, y, that are in the cabinet? (activity sheet)

How many 7 inch plates are in the cabinet?

(WHITE BOARD RESPONSE FOR PART 2)

• A

• B

• C

• D

Open Ended

Explain when to use the 3 different methods for solving a system of equations:

(Stem: It is best to use the graphing method for solving systems of equations when ... It is best to use the substitution method for solving a system of equation when ...)