Write an equation of the parabola with focus f(0,-3) and directrix y=3

check the picture below, so the parabola looks more or less like so.

bearing in mind that the vertex is half-way between the directrix and the focus point, so that puts it in the origin.

the distance from the vertex to the directrix or focus point is "p" units, in this case, just 3 units, however, the parabola is opening downwards, meaning "p" is negative, so p = -3.

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

no i do not : ( what is it?