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Graphing inequalities

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FC: Graphing Inequalities | Kristen Smith, Dayley Seal, Natalia Velasco.

1: Step one; | Three Easy Steps to Solve inequalities | Step 0ne: Graph the boundary line use a dashed line if the sign is greater than or less than. use a solid line if it is grater than or equal to and less then or equal too. Use a solid line when there is a line under the symbol.

2: Three Easy Steps: | Step Two: test a point on the boundary line by checking weather the ordered pair is not a solution.

3: Step three: shade the half-plane containing the point if the ordered pair is a solution of the inequality. Shade the other half-plane if the ordered pair is not a solution.

4: Graphing Inequalities in one variable | Step one: Graph the equation y= 3 the inequality is grater than or equal to so you use a solid line.

5: STEP 2 Test (2,0) in the y < 3 you substitute only the y- coordinate because the inequality does not have the variable x 0 <3

6: Step 3 | Shade the half plane that contains (2,0) because (2,0) is a solution of the inequality. | ____________________________________________________________ | Since the graph only contains one variable it will be a horizontal line or a vertical line depending on weather it is in the y= form or in the x= form.

7: The red dot on the graph represents the point (2,0) witch is in the shaded region there for it is a solution!

8: Graph a linear inequality in two Variables

9: * A solution is a coordinate point found in the darkly shaded area. Step 1: graph the equation y=4x-3. The inequality is ">" so its a dashed line. Step 2: Test (0,0) in y> 4x-3 0>4(0)-3 0>-3 Step 3: Shade the half-plane that contains (0,0) because (0,0) is a solution of the inequality. * REMEMBER y= mx+b


11: END

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