Question

The equation of the tangent to the parabola $y^2 = 8x$ which is parallel to the line $2x - y + 5 = 0$ is:

• A. $2x - y + 1 = 0$
• B. $2x - y - 1 = 0$
• C. $2x - y + 2 = 0$
• D. $2x - y - 2 = 0$

Hint:

The condition for a line $y = mx + c$ to be tangent to the parabola $y^2 = 4ax$ is $c = \frac{a}{m}$.

Answer 1

The Correct Option is A