# 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