The vertex form of the equation of a vertical parabola is given by y = (x - h)2 + k, where (h, k) is the vertex of the parabola and the absolute value of p is the distance from the vertex to the focus, which is also the distance from the vertex to
the directrix. You will use the GeoGebra geometry tool to create a vertical parabola and write the vertex form of its equation.
Open GeoGebra C, and complete each step below. If you need help, follow these instructions for using GeoGebra.
Part A
Mark the focus of the parabola you are going to create at F(6,4). Draw a horizontal line that is 6 units below the focus. This line
will be the directrix of your parabola. What is the equation of the line?
B
I U
Font Sizes
AA-
ya
10:34