I.
ADDITIONAL ACTIVITY
Write your answer for the following problems in a graphing paper.
material to shade region.)
Solve system of inequalities graphically. (use straight edge to draw the boundary line and coloring
y S-3
2x
(2x + y = -5
y S1
- 5
1.
x 2-3
y = x - 4
2.
3y 2-1
3
3.
x + y 2-2
yS-2
x +y <-4
2x - 3y = 5
y s
&
II. Write a system of linear inequalities to describe the situation in each problem. Then solve the system
graphically.
1. The size of a basketball floor varies due to building sizes and other concerns such as cost, etc. the
length L is to be at most 94 ft., and the width w is to be at most 50 ft. Graph a system of inequalities
that describes the possible dimensions of basketball floor.
2. Write four systems of four inequalities that describe a 3-unit-by-3-unit square that has (0,0) as one of
the vertices.
3. Many elevators have a capacity of 1000 kg. Suppose that children (each weighing 35 kg.) and adults
(each 80 kg.) are inside an elevator. Graph a system of inequalities that indicates when the elevator is
overloaded.
Lanie s. Salamanes, MT1​