swaggybest swaggybest

25-04-2017
Mathematics

contestada

Which equation represents a parabola that has a focus of (0, 0) and a directrix of y=−6 ?

Respuesta :

Аноним Аноним

25-04-2017

take any point (x,y) on the line
distance between (x,y) and the focus = distance from the point to the directrix
s sqrt(x^2 + y^2) = |x - (-6)|

x^2 + y^2 = x^2 + 12x + 36
y^2 = 12x + 36

that is the required equation

Answer Link

Otras preguntas

This style of government gets its name from the head of the executive branch which is viewed as the center of this style of democracy.

HELP MEEEEEEEEEEEEEE

What could happen if one branch was not checked

Bonjours pouvez m'aidez a répondre a ces questions svp ? 1. La musique est un art. Il y en a 7. Citer les 6 autres. (1 point) 2. Ou est née la musique ? (1 p

i need help with this. it’s just geometry

An exam has 2 papers each scored differently. one is out of 120 and another is out of 80. Maryam scores 65% on the first and 80% on the second. work Maryam's to

A restaurant has two types of tables, rectangular ones that can each seat 4 people and circular tables that can each seat 8 people. If 144 people are enough to

Alfred is having trouble with his car so he visits his friend Glen, who is a mechanic, for some free advice. Alfred asks Glen just to look at the car and determ

what is 1666666666679770810 times 1992004493875633 if someone answers i will give brainliest

Frigidia is a colony in Antarctica. The colony is 1,000 square kilometers in size. Currently, 30,000 people live there. Last year, 10,000 children were born and