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Home > CCG > Chapter 7 > Lesson 7.2.2 > Problem 7-71

7-71.

On graph paper, graph and shade the solutions for the inequality below.      

Example 1

Graph the solutions to the inequality .

First, graph the line , but draw it dashed since  means the boundary line is not part of the solution. For example, the point  is on the boundary line, but it is not a solution to the inequality because 

Next, test a point that is not on the boundary line. 
For this example, use the point 

 which is a true statement. 

Since the inequality is true for this test point, shade the region containing the point . All of the coordinate pairs that are solutions lie in the shaded region. 

The graph of the line y = 3 x minus 2 drawn with dashed lines.

The graph is shaded in the region containing the point (negative 2, comma 4) which is above the line.

Use the eTool below to graph and shade the solutions for the inequality.
Click the link at right for the full version of the eTool: CCG 7-71 HW eTool