The area of the region {(x,y):0≤y≤6−x, y2≥4x−3,x≥0} is :
(A)8
(B)9✓ Correct
(C)12
(D)15
Answer: (B)
Solution
The parabola y2=4x−3 gives x=4y2+3, and it meets y=6−x where 6−y=4y2+3, i.e. y2+4y−21=0, so y=3 (taking y≥0). For 0≤y≤3 the region runs from x=0 to the parabola x=4y2+3, and for 3≤y≤6 it runs from x=0 to the line x=6−y. The area is ∫034y2+3dy+∫36(6−y)dy=29+29=9.
JEE Main · 2026 · 06 Apr 2026 · Shift 1 · Single correct option