Graphing Linear Systems Warmup

Determine if the ordered pair (3, 4) is a solution to the linear system:

2x + 3y = 18

x - 2y = -5

• Yes

• No

• Not sure

• Maybe

Determine if the ordered pair (-2, 1) is a solution to the linear system: 3x - 2y = 7

4x + y = -9

• Maybe

• Yes

• No

• I don't know

Determine if the ordered pair (0, -3) is a solution to the linear system: 5x + 2y = -1

-3x + 4y = -9

• Yes

• No

• I don't know

• Maybe

What is the solution to the system?

• (0, 3)
• (1, -1)
• (-3, 1)
• (1, 3)

What is the solution to the system of equations?

• (2, 2)
• (3, 2)
• no solution
• (2, 3)

Which of the following inequalities matches the given graph?

• y ≥ 2/5x + 1
• y ≥ -2/5x + 1
• y≤  2/5x + 1
• y ≥ -2/5x - 1

How can I tell if an inequality will have a solid line?

• It has an equal sign.
• The symbol is greater than.
• The symbol has "or equal to."
• You just guess.

Which point below is NOT part of the solution set?

• (0, 0)
• (-10, 20)
• (3, 5)
• (0, -2)

Which system of inequalities matches the graph?

• y > 2x - 4
  y < 2
• y < 2x - 4
  y < 2
• y > 2x - 4
  y <  2 
• y < 2x - 4
  y <   -2

Is (-2,4) a solution to the system?

• Solution
• Not a solution