Derive the equation of the parabola with a focus at (−5, −5) and a directrix of y = 7.

f(x) = −one twenty-fourth (x − 1)2 − 5
f(x) = one twenty-fourth (x − 1)2 − 5
f(x) = −one twenty-fourth (x + 5)2 + 1
f(x) = one twenty-fourth (x + 5)2 + 1

i got b just checking my answers

Question

Derive the equation of the parabola with a focus at (−5, −5) and a directrix of y = 7.

 f(x) = −one twenty-fourth (x − 1)2 − 5
 f(x) = one twenty-fourth (x − 1)2 − 5
 f(x) = −one twenty-fourth (x + 5)2 + 1
 f(x) = one twenty-fourth (x + 5)2 + 1

i got b just checking my answers

anonymous · Answer

if someone will double check for me

anonymous · Answer

|dw:1423146758194:dw|