Quadratics review

Front

Solve using square roots: k² - 6 = 43

Back

k = 7, k = -7

Front

True or false: The solutions, roots, x-intercepts, and zeros of a quadratic equation are all the same thing.

Back

True

Front

Does the equation open up or down? Y = -3x² + 7x - 2

Back

Down

Front

Solve: x² - 2x - 8 = 0

Back

x = -4, x = 2

Front

What is this? Y = ax² + bx + c

Back

This is the standard form of a quadratic equation.

Front

What is the quadratic formula?

Back

x = (-b ± √(b² - 4ac)) / (2a)

Front

What are the x-intercepts of the quadratic equation y = x² - 4?

Back

x = -2, x = 2

Front

What does the vertex of a parabola represent?

Back

The highest or lowest point of the parabola.

Front

What is the axis of symmetry in a quadratic equation?

Back

x = -b / (2a)

Front

What is the discriminant in the quadratic formula?

Back

b² - 4ac