Graphing Inequalities in Two Variables

Notice the vertical, dashed line. Notice that the shading is to the LEFT. The words LESS and LEFT start with L.

• x < 2

• choose the first option

What is the equation for this inequality graph?

• y > -1

• y < -1

• x < -1

• x > -1

Answer explanation

The dashed line crosses the x-axis. Therefore, the equation uses x, not y.

What is the equation for this inequality graph? (The line is dashed.)

• x < 4

• x > 4

• y < 4

• y < 4

What is the equation of this graph? Notice that the dashed line is horizontal and crossing the y-axis.

• x > 3

• x < 3

• y < 3

• y > 3

Select the correct graph for each inequality.

• A

• B

• C

• D

Which inequality matches the picture shown?

• y < -1/2 x + 5

• y < -1/2 x + 5

• y > -1/2 x + 5

• y > -1/2 x + 5

Which of the following equations match the given graph?

• y ≤ -3/4 x + 3

• y ≥ -3/4 x + 3

• y < -3/4 x + 3

• y > -3/4 x + 3

Which of the following inequalities matches the graph?

• y > 2x - 2

• y < 2x - 2

• y ≥ 2x - 2

• y ≤ 2x - 2

Which of the following inequalities matches the graph?

• y ≤ 3/4x + 5

• y ≥ 3/4x + 5

• y < 3/4x + 5

• y > 3/4x + 5

Which of the following equations match the given graph?

• y ≤ -3/4 x + 3

• y ≥ -3/4 x + 3

• y < -3/4 x + 3

• y > -3/4 x + 3