# How do you write an equation of a parabola with directrix x+y=1 and focus (1,1)?

##### 1 Answer

Sep 22, 2016

#### Explanation:

We use the Focus-Directrix Property of Parabola (FDP) :

**(FDP)** : Let pt.

Parabola, resp. If

equidistant from the pt.

Recall that the

Let

above, we have,