Find the coordinates of the focuss and the equation of the directrix for y²=28x?
1 Answer
Focus:
Directrix:
Explanation:
We can rewrite this equation as
In a horizontal parabola, the focus will have the same y-coordinate as the vertex. Since the parabola faces the right, the focus is moved 7 units to the right:
Focus:
The directrix is 7 units to the left of the vertex. Since we have a vertical parabola, the directrix is a vertical line,