Related to factored form.

The graph has x-intercepts of (-2, 0) and (3, 0).

The equation must be (x ___)(x ___)

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x-intercept(s)

Related to standard form

What part of y = x² - 4 is related to the y-intercept?

How could you get the y-intercept from the same equation in factored form y = (x + 2)(x - 2)?

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y-intercept

Maximum or minimum.

If the x² term is positive the vertex is a minimum (opens up)

If the x² term is negative the vertex is a maximum (opens down)

The x-coordinate is halfway b/n the x-int(s)

To find the y-coordinate, plug in the x-coordinate.

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Vertex