conic-section

Question: The point at which the line $y=mx+c$ touches the parabola ${{y}^{2}}=4ax$ is

1) $\left( \frac{a}{{{m}^{2}}},\ \frac{2a}{m} \right)$

2) $\left( \frac{a}{{{m}^{2}}},\ \frac{-2a}{m} \right)$

3) $\left( -\frac{a}{{{m}^{2}}},\ \frac{2a}{m} \right)$

4) $\left( -\frac{a}{{{m}^{2}}},\ -\frac{2a}{m} \right)$

Solution:

Explanation: No Explanation

Parabola

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