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1. |
A point on the parabola \[{{y}^{2}}=18x\] at which the ordinate increases at twice the rate of the abscissa is |
A. | (2, 4) |
B. | (2, -4) |
C. | \[\left( \frac{-9}{8},\frac{9}{2} \right)\] |
D. | \[\left( \frac{9}{8},\frac{9}{2} \right)\] |
Answer» E. | |