Presentation on theme: "Graphing Linear Inequalities in Two Variables SWBAT graph a linear inequality in two variables SWBAT Model a real life situation with a linear inequality."— Presentation transcript:
Graphing Linear Inequalities in Two Variables SWBAT graph a linear inequality in two variables SWBAT Model a real life situation with a linear inequality.
Graphing an Inequality in Two Variables Graph x < 2 Step 1: Start by graphing the line x = 2 Now what points would give you less than 2? Since it has to be x < 2 we shade everything to the left of the line.
Graphing a Linear Inequality Sketch a graph of y 3
Some Helpful Hints If the sign is > or < the line is dashed If the sign is or the line will be solid When dealing with just x and y. If the sign > or the shading either goes up or to the right If the sign is < or the shading either goes down or to the left
Using What We Know Sketch a graph of x + y < 3 Step 1: Put into slope intercept form y <-x + 3 Step 2: Graph the line y = -x + 3
When dealing with slanted lines If it is > or then you shade above If it is < or then you shade below the line
Homework: Page 363 –364 # 16-30 EVENS 43-48 ALL 49-59 ODDS 62-65 ALL