Question

The directrix of y =1/8 x^2 is:

A. x = -2
B. y = -2
C. y = 2

Answer 1

rewrite it as standard form

Answer 2

\[x^2=4py\\\]

Answer 3

That how they wrote it

Answer 4

\[x^2=16y\\4p=16\\p=4\]

Answer 5

that was an example !
and what is yours ?

Answer 6

\[\frac{1}{8}x^2=y\\* 8\\x^2=8y\\x^2=4py\\\]

Answer 7

i dont know

Answer 8

is the answer y=2