a) 4p(x−h)=(y−k)24p(x-h)=(y-k)^24p(x−h)=(y−k)2
Focus is (h+p,k)(h+p,k)(h+p,k)
Directrix is x=h−px=h-px=h−p
We have:
p=1/8,h=k=0p=1/8, h=k=0p=1/8,h=k=0
focus: (1/8,0)(1/8,0)(1/8,0)
directrix: x=−1/8x=-1/8x=−1/8
b) 4p(y−k)=(x−h)24p(y-k)=(x-h)^24p(y−k)=(x−h)2
Focus is (h,k+p)(h,k+p)(h,k+p)
Directrix is y=k−py=k-py=k−p
p=−9,h=k=0p=-9, h=k=0p=−9,h=k=0
focus: (0,−9)(0,-9)(0,−9)
directrix: y=9y=9y=9
Need a fast expert's response?
and get a quick answer at the best price
for any assignment or question with DETAILED EXPLANATIONS!
Comments