Concept:Graph the given linear inequalities and identify the common feasible region in the first quadrant.
Explanation:Rewrite the inequalities as
y≥x+2 and
y≤−x+5.
Since
x≥0 and
y≥0, the required region lies in the first quadrant.
The line
y=x+2 cuts the
y-axis at
(0,2).
The line
y=−x+5 cuts the
y-axis at
(0,5) and the
x-axis at
(5,0).
The inequality
y≥x+2 gives the region above the line
y=x+2.
The inequality
y≤−x+5 gives the region below the line
y=−x+5.
Find the intersection of
y=x+2 and
y=−x+5:
x+2=−x+52x=3x=1.5 and
y=3.5Thus, the common region is a triangle with vertices
(0,2),
(0,5), and
(1.5,3.5).
Answer:The required region is the triangle with vertices
(0,2),
(0,5), and
(1.5,3.5).
Choose the option that shows this triangular region.