The points on the curve x²/9 + y²/25 + 1, where the tangent is parallel to the x-axis are
A. (±5, 0)
B. (0, ±5)
C. (0, ±3)
D. (±3, 0)
Answer:B
The points on the curve x²/9 + y²/25 + 1, where the tangent is parallel to the x-axis are
A. (±5, 0) B. (0, ±5) C. (0, ±3) D. (±3, 0)