1. Write an equation that would allow you to test whether a particular point (x, y) is on the parabola

2. Write an equation that states (x, y) is the same distance from (4, 1) as it is from x axis.

3. Write an equation that describe a parabola with focus (-1,-7) and directrix y=3.

4. Write an equation that is perpendicular to the equation y= -2/5x + 8/5.