Question

Write the equation of the parabola with vertex (9, –2) and point (12, 16) in vertex form.

Answer 1

general equation is

y-h=a(x-b)^2
where b and h are coordinates of vortex (b,h)
here b=9 , h=-2

so
y-(-2)=a(x-9)^2

y+2=a(x-9)^2
y=a(x-9)^2-2

now put x=12 and y=16 and solve the equation to get value of a .

Answer 2

A.

y = (x + 9)2 + 2

B.

y = 2(x – 12)2 – 16

C.

y = 2(x – 9)2 – 2

D.

y = 3(x + 12)2 + 16

I think it would be C

Answer 3

smart guess !!!! yes it is .

Answer 4

yes!