Project 12: Equation of Parabola given Focus and Directrix
Project 12: Variables 'verticalParabola', 'focusX', 'focusY', 'directrix' have been initialized.
verticalParabola represents if the parabola is vertical opens up or down or horizontal opens left or right (true if vertical; false if horizontal)
focusX represents the x-coordinate of the focus
focusY represents the y-coordinate of the focus
directrix represents the value of the directrix (i.e. y = directrix for vertical parabola, x = directrix for horizontal parabola)
Here are two examples below:
For the example above:
verticalParabola = false
focusX = -4
focusY = 0
directrix = 4 (which represents x = 4)
p is the distance between the vertex and the focus, which is the same as the distance between the vertex and the directrix.
p = 4
a = -1/16 here because the parabola is opening to the left and not the right.
For the example above:
verticalParabola = true
focusX = 0
focusY = -1.5
directrix = 1.5 (which represents y = 1.5)
p is the distance between the vertex and the focus, which is the same as the distance between the vertex and the directrix.
p = 1.5
a = -1/6 here because the parabola is opening down and not up.
Task: Appropriately the values of 'vX', 'vY', 'a'
vX and vY represent the coordinates of the vertex of the parabola.
a represents the leading coefficient of the parabola as described above.
**If your code works for 5 test cases in a row, you can enter your e-mail address.