Factoring quadratics

Front

Factor: x² - 16

Back

(x - 4)(x + 4)

Front

What do the "Zeros" represent on a quadratic equation graph?

Back

x-intercepts

Front

Factor: 25x² - 100y²

Back

(5x - 10y)(5x + 10y)

Front

Factor, if possible: 4x² + 36x + 81

Back

(2x + 9)²

Front

Factor 4x² - 81

Back

(2x - 9)(2x + 9)

Front

What is the standard form of a quadratic equation?

Back

y = ax² + bx + c

Front

What is the vertex of a quadratic function?

Back

The highest or lowest point on the graph of the function.

Front

What is the axis of symmetry in a quadratic function?

Back

A vertical line that divides the parabola into two mirror images.

Front

Factor: x² + 10x + 21

Back

(x + 3)(x + 7)

Front

What is the quadratic formula?

Back

x = (-b ± √(b² - 4ac)) / (2a)