Question

A parabola has a vertex at (-1, 0) and opens down. What is the equation of the parabola?

Answer 1

@strawberryswing

Answer 2

y=a(x-h)^2+k is the vertex form of a parabola, where (h,k) represent the vertex (-1,0)

Answer 3

h=-1
k=0

and since there's no vertical stretching involved in this graph, then a will remain 1

Answer 4

y ≤ -1

y ≥ -1

y ≤ 1

y ≥ 1

Answer 5

@Zale101

Answer 6

your question says "the parabola opens down"
y=a(x-h)^2+k

a=-1 because it's a sad parabola

Answer 7

oh ok thanks :)