Find the equation of the quadratic function with zeros -1 and 1 and vertex at (0, -4). y = x2 + 1 y = x2 - 1 y = 4x2 - 4 y = 4x2 + 4x

@van_lynne any attempts? What do you need help with specifically or are you lost all together?

im completely lost

@Algorithmic

Are you familiar with quadratic equations? As in have you ever used the quadratic formula?

no

All right, how about factoring? That is one of the basics they teach before they teach quadratic equations to anyone. Do you know how to factorize equations?

Actually we could solve this by graphing, do you know how to graph linear equations? It is really simple and I can teach it to you easily if you would like.

if u have to solve through options ,just put the points (0,-4) in each of the four options and see if LHS=RHS

Oh, I did not know that was possible. Neat trick.

i still have no idea what the answer is :/

To find the zeros of quadratic equation look at the x-axis where the parabola intercepts the x-axis is where the zeros of the quadratic equation are. (The vertex could be the spot of symmetry.)

whats a parabola?

A parabola is a two-dimensional, mirror-symmetrical curve which generally looks like the letter 'U'.

Here perhaps this image would make more sense to explaining what I am trying to say.

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