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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