Question

Which of the following equations is of a parabola with a vertex at (-6, 0)?
A.y= (x- 6)2
B.y= (x+ 6)2
C.y=x2- 6
D.y=x2+ 6

Answer 1

y=a(x-h)^2+k is the equation of parabola in which (h,k) is the vertex

Answer 2

that vertex is a double root

Answer 3

so, we have write y= (x+ 6)^2 as y=1(x+6)^2+0

Answer 4

so its b?

Answer 5

now on comparing
y=a(x-h)^2+k
y=1(x+6)^2+0
we have
h=-6 and k=0
so, vertex=(-6,0) for y=(x+6)^2

B) is the correct answer

Answer 6

yes:)