Concept:The two curves form a symmetric diamond-shaped region, so its area is half the product of the diagonals.
Explanation:The curves are
y=∣x∣−1 and
y=−∣x∣+1.
At their intersection,
∣x∣−1=−∣x∣+1.
This gives
2∣x∣=2, so
∣x∣=1, hence
x=±1.
At
x=±1,
y=0, so the intersection points are
(−1,0) and
(1,0).
The curve
y=∣x∣−1 is a V-shape with vertex at
(0,−1).
The curve
y=−∣x∣+1 is an inverted V-shape with vertex at
(0,1).
Together, they enclose a diamond with vertices
(−1,0),
(0,1),
(1,0), and
(0,−1).
The horizontal diagonal has length
2, and the vertical diagonal also has length
2.
Area
=21​×2×2=2 square units.
Answer:The area bounded by the curves is
2 sq. units, which is Option B.