Encontrar la ecuación canónica de la parábola que tiene eje focal horizontal y contiene los puntos (-1, -1), (0, 1), (1, 0). Resolver el ejercicio anterior suponiendo que el eje focal es vertical

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

w'x is 0.

hope it

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,