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13 Cards in this Set

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Parabola

A special cure, shaped like an arch. There is an AOS and a vertex in a parabola

Quadratic Function

An equation where the highest exponent of the variable (usually X) is squared.


Ex. 2X2+5X+3

Factored Form

Written as: F(x)= a(x-s)(x-t)


You can find the zeros by subbing in the value of X to equal Zero.

Standard Form

Written as: F(x)= ax2+bx+c


To find the zeros, you sub the A, B and C values into the discriminant.

Vertex Form

Written as: F(x)= a(x-h)2+k


You can factor to find the zeros. The K-value is the Y-Intercept

Maximum

When the Parabola opens down (the A-value is negative) this is called a maximum.

Minimum

When the Parabola opens up (the A-value is positive) this is called a maximum.

Vertex

Where the parabola makes its sharpest turn. Consists of an X and Y coordinate

Zeros of a Quadratic

The solutions to the equation where the variable is equal to zero.

X-Intercepts

A point on the X-axis where a line passes through and Y is equal to zero.


Ex. (12,0) (-3,0) (1,0)

Y-Intercepts

A point on the Y-axis where a line passes through and X is equal to zero.


Ex. (0,4) (0,-14) (0,7)

Complete the Square

Complete the square when going from standard form to vertex form. This helps to find the vertex of an equation.

Radical

The symbol that means "root of".