Question #ed0b6
1 Answer
Jul 2, 2016
Two tangents intersect at
Explanation:
Given the parabola as
In our case of
graph{-0.125x^2 [-5, 5, -5, 1]}
Therefore, the focal chord is represented by a horizontal line parallel to X-axis and going through point
It crosses the parabola at
Now we can find the slope of a tangent to parabola at points
The derivative of
At points
Going through point