Question

please help me?

Find an equation of a parabola with a vertex at the origin and directrix y = –1.5

Answer 1

@phi ?

Answer 2

@thomaster ?

Answer 3

is there an x ?

Answer 4

no..

Answer 5

thats not an parabola

Answer 6

x has to be squared

Answer 7

Thats an horizontal line

Answer 8

so it goes like this http://fooplot.com/#W3sidHlwZSI6MCwiZXEiOiItMS41IiwiY29sb3IiOiIjMDAwMDAwIn0seyJ0eXBlIjoxMDAwLCJ3aW5kb3ciOlsiLTUuMiIsIjUuMiIsIi0zLjIiLCIzLjIiXX1d

Answer 9

Bye

Answer 10

but thats not one of my options?

Answer 11

what are your options then show me please

Answer 12

hurry I only got a few minutes

Answer 13

show me the equation again did you type right ?

Answer 14

yea i typed it right..here it is again:

Find an equation of a parabola with a vertex at the origin and directrix y = –1.5. (1 point)

Answer 15

since the directrix is a horizontal line y = -1.5,
the parabola opens UP

Answer 16

c = -1.5

Answer 17

look at the chart

Answer 18

equation wud be : \(\large y = \frac{1}{4c}x^2\)

Answer 19

plugin value of \(c\) and simplify

Answer 20

thank you:)

Answer 21

u wlc :)