Project 13: Equation of Parabola given Focus and Vertex
Project 13: Variables 'vX', 'vY', 'focusX', 'focusY' have been initialized.
vX is the x-coordinate of the vertex
vY is the y-coordinate of the vertex
focusX represents the x-coordinate of the focus
focusY represents the y-coordinate of the focus
Task: Appropriately initialize the values of 'directrix', 'a', and 'verticalParabola'
directrix represents the value of the directrix (i.e. y = directrix for vertical parabola, x = directrix for horizontal parabola)
a is the leading coefficient of the parabola
verticalParabola represents if the parabola is vertical opens up or down or horizontal opens left or right (true if vertical; false if horizontal)
Here are two examples below:
Given:
vX = 0
vY = 0
focusX = -4
focusY = 0
The following would be initialized:
p = 4 (not a required variable)
p is the distance between the vertex and the focus, which is the same as the distance between the vertex and the directrix.
a = -1/16 (negative because it opens to the left)
directrix = 4 (which represents x = 4)
verticalParabola = false
Given:
vX = 0
vY = 0
focusX = 0
focusY = -1.5
The following would be initialized:
p = 1.5 (not a required variable)
a = -1/6 (negative because it opens down)
directrix = 1.5 (which represents y = 1.5)
verticalParabola = true
**If your code works for 5 test cases in a row, you can enter your e-mail address.