The vertex of this parabola is at (-2,-3). When the y-value is -2 the x-value is -5. What is the coefficient of the square term in the parabola’s equation?

I think it’s -3

The vertex of this parabola is at 23 When the yvalue is 2 the xvalue is 5 What is the coefficient of the square term in the parabolas equationI think its 3 class=

Respuesta :

Answer:

a = -3

Step-by-step explanation:

You're correct.

The form of the equation you need is

[tex]x=a(y-k)^2+h[/tex]

Filling in our h, k, y, and x:

[tex]-5=a(-2+3)^2-2[/tex] which simplifies to

[tex]-5=a(1)-2[/tex] which simplifies further to

[tex]a=-3[/tex]

Very good!!!! These can be tricky, but you got it!!