Mathematics · Conic Sections
Let E be an ellipse whose axes are parallel to the coordinate axes, having its center at (3, -4), one focus at (4, -4) and one vertex at (5, -4). If mx - y = 4, m > 0 is a tangent to the ellipse E, then the value of 5m2 is equal to:
- 17
- 23
- 35
- 49✓
Correct answer
9
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