If we plot both the vertex and the directrix, we see that the parabola opens to the right. We know this because of the fact that the directrix is a vertical line. Because the vertex is to the right of the directrix and a parabola always opens away from the directrix, we know this is of the form
h and k are the coordinates of the vertex which we are given. Our h = 10 and our k = 0. P is defined as the distance between the vertex and the directrix, so our p = 2. Filling in the equation with all of that gives us
and
and
so
Not sure what form you need it in, work form or standard form.
a triangle's angle sum is 180 degrees, so you would subtract 180-60=120 because angle q is 60 degrees less than 180. now add 40 to 120 to equal 160 then subtract 160 from 180 to equal 20 degrees