System of Equations: Choosing the Best Method

How many solutions does this system of equations have?

• One Solution

• No solution

• Infinitely Many Solutions

• Two Solutions

Which two methods are appropriate for solving this system of equations?

• Substitution or Elimination

• Graphing or Substitution

• Elimination or Graphing

• Substitution

• Elimination

• Graphing

Which two methods are appropriate for solving the system?

• Substitution and Elimination

• Elimination and Graphing

• Substitution and Graphing

Solve the system using the most appropriate method.

3x - y = 7

2x + y = 3

• (-1,2)

• (5,4)

• (4,5)

• (2,-1)

Solve the system using an appropriate method.

y = 5x − 5

y = −4x + 22

• (1, 2)

• (3, 10)

• (-1, 2)

• (-3, 10)

What is the best method to use?

−4x − 2y = −12

4x + 8y = −24

• Graphing

• Substitution because a variable is defined

• Elimination because the equations are in standard form.

What is the best method to use?

2x − 3y = −1

y =x − 1

• Graphing

• Substitution because a variable is defined

• Elimination because the equations are in standard form.

Which is the most efficient method for solving the following system? x=4-2y 3x-2y=4

• Substitution

• Elimination

• Graphing