Question 1204030


{{{34.8y = x^2}}}

comparing to {{{4py=x^2}}}, we have

({{{h}}},{{{k}}})=({{{0}}},{{{0}}})

{{{4p=34.8}}} => {{{p=34.8/4}}}=> {{{p=8.7}}}

then

focus: ({{{0}}},{{{8.7}}})
vertex: ({{{0}}},{{{0}}})
semi-axis length: {{{8.7}}}
focal parameter: {{{2*8.7=17.4}}}
eccentricity: {{{1}}}
directrix:{{{ y = -8.7}}}

Focal parameter (the distance between the focus to the directrix) is {{{17.4}}}.