Question 1206394

Its diameter is {{{6cm}}} and its depth is {{{2cm}}}

for simplicity, let vertex be at ({{{0}}},{{{0}}})

parabola opens to the right, and we use the standard equation in the form

{{{y^2=4p*x}}}  where focus is at {{{p}}}

two points on this parabola are ({{{2}}},{{{3}}}) and ({{{2}}},{{{-3}}}) => diameter is {{{6cm}}}, {{{3cm}}} above and {{{3cm}}} below x-axis and  depth is {{{x=2cm}}}

using one point we can calculate {{{p}}}

{{{3^2=4p*2}}}
{{{9=8p}}}
{{{p=9/8}}}
{{{p=1.125}}}



answer: C.