Question:
<p>Sum of slopes of two normals (other than axis) to the parabola y<sup>2</sup> = 4x which are tangents to x<sup>2</sup> = -12y is:</p>
<p style="display:inline">3</p>
<p style="display:inline">2</p>
<p style="display:inline">-3</p>
<p style="display:inline"><span class="math-tex">\(\frac 32\)</span></p>
Step-by-Step Solution
Key Concept: Equate the y-intercepts of the slope-form equations for the normal of the first parabola and the tangent of the second to solve for common slopes.
<p>-3</p>
Correct Answer: C