I believe it is a triangular prism
The distance between the focus and directrix is, in this case, 8. Since the directrix is at x= something, the parabola opens sideways, and since the directrix is on the left, to the right. In which case, y^2=p(x), where p is 4 times distance of half of distance between directrix and focus, so the answer is y^2=16x
Step-by-step explanation:
I think the fig.. will helps you a lot...
Answer:
f(x=16
Step-by-step explanation:
f(-5)=-2(-5)+6
f(-5)=10+6
f(-5)=16