I have more questions, sorry to bother

they ask me to write the equation in standard form, then find the center and radius x^2+y^2+8x+7= 0

they also ask me to find the vertex, focus and the lenght of the lactus rectum 8y=x^2

and just one last, so sorry to ask for that much help

find the equation of the parabola that has a focus at (-3,4) and directriz y=2

thank you.