A quadratic equation is a second degree ploynomial. examples are y = x2(This is one of what we call parent functions)
y = 4x2 +3x + 4 (4 is the y intercept)

Most quadratics are in the form f(x) = ax2 + bx + c For example y =3x2 + 6x - 4
This is not in the vertex formate and it must be altered to change it to that format.
This is done by using the process called completing the square in the following way: Try this example:
y = x2 + 4x + 5

Will this graph open upward or downward?
What is the axis of symmetry?
What is the y intercept?
What is the vertex?

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