Parabola
Tangent to Parabola
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>x^2 + 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: Find the director circle of the parabola and intersect it with the locus curve to find points from which perpendicular tangents can be drawn.
<p>Solution not provided in source material.</p>
Correct Answer: B