Parabola
Tangent Properties
Grade 11
Question:
<p>The number of points on the curve given by locus of circumcentre in problem 2 from which perpendicular tangents can be drawn to the parabola <span>x² + 4y = 0</span> is:</p>
<p>(a) 1</p>
<p>(b) 2</p>
<p>(c) 3</p>
<p>(d) 4</p>
Step-by-Step Solution
Key Concept: Points from which perpendicular tangents can be drawn to a parabola lie on the directrix. Count how many such points lie on the locus curve.
<p>Answer: (b)</p>
Correct Answer: B