Algebra I Section 5-6 Graphing Inequalities in Two Variables

Algebra ISection 5-6

Graphing Inequalities in Two Variables

Review: Graph the equation using slope-intercept form.

Graphing Linear Inequalities

Step 1: Rewrite the equation so y is by itself

Step 2: Write down the slope and the y-intercept

Step 3: Plot the y-intercept (the “b” value)

Step 4: “Move” up/down the slope from that point

Graphing Linear Inequalities (continued)

Graphing Linear Inequalities (continued)

Step 6: Test a point to determine which side of the line should

be shaded

If the test point is true, then shade the side that does

include the test point

If the test point is false, then shade the side that

does not include the test point

Graph each inequality. List the m and b, and say whether it is a dashed or solid line. Then graph and shade.

Graph each inequality. List the m and b, and say whether it is a dashed or solid line. Then graph and shade.

Graph each inequality. List the m and b, and say whether it is a dashed or solid line. Then graph and shade.

Graph each inequality. List the m and b, and say whether it is a dashed or solid line. Then graph and shade.

Constant Inequalities

horizontal line

slope = 0

equation: y (inequality sign) number

follow the same steps

Graph each inequality. Write whether it is a dashed or solid line. Then graph and shade.

Graph each inequality. Write whether it is a dashed or solid line. Then graph and shade.

Assignment:

Worksheet!• Write your name on your paper

• Follow the directions