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

y = -x^2 - 1
y = -(x - 1)^2
y = -(x + 1)^2

C.

Step-by-step explanation:

We have been given that a parabola has a vertex at (-1, 0) and opens down. We are asked to find the equation of the parabola.

We know that the vertex form of parabola is in form: , where, point (h,k) is the vertex of parabola and sign of 'a' determines whether parabola opens upwards and downwards.

Since the vertex of our given parabola is at (-1,0) and it opens downwards, so the leading coefficient will be negative.

Therefore, the equation of the parabola is and option C is the correct choice.

(0,,,0)

step-by-step explanation:

the table of x and y values is shown in the attached pic(part of question)

we have to decide according that graph

given points are (0, 0) (–1, 0), (2, 0)

when we graph these points on graph they show an increasing line as shown in the attached pic