When we graph a linear inequality in two variables, we have two different approaches. We can solve for y, graph the boundary line, and shade above the line for a greater than or below the line for a less than. We can also graph the boundary line and use a test point.
Test Objectives:•Demonstrate the ability to draw the boundary line
•Demonstrate the ability to graph an inequality with the test point method
•Demonstrate the ability to graph an inequality by solving for y
Graphing Linear Inequalities in two Variables Test:
#1:
Instructions: Graph each.
a) 5x + 3y > -9
#2:
Instructions: Graph each.
a) y > -3
#3:
Instructions: Graph each.
a) 2x + 3y < 9
#4:
Instructions: Graph each.
a) x ≥ 1
#5:
Instructions: Graph each.
a) 5x - 3y ≥ 0
Written Solutions:
Solution:
a)
Solution:
a)
Solution:
a)
Solution:
a)
Solution:
a)