Quadratic Key Features

Front

What is the vertex of the quadratic function: y = x² - 6x + 11?

Back

(3,2)

Front

A parabola has a vertex at (-3,2). Where is the axis of symmetry?

Back

x = -3

Front

What is the maximum/minimum of a parabola called?

Back

vertex

Front

What was the maximum height of the ball? Choose the key feature and the answer choice.

Back

y-value of the vertex, 5 feet

Front

What is the significance of the ordered pair (0, -2) to the graph?

Back

It is the y-intercept.

Front

What is the standard form of a quadratic function?

Back

y = ax² + bx + c

Front

How do you find the axis of symmetry for a quadratic function?

Back

x = -b/(2a) where a and b are coefficients from the standard form.

Front

What does the 'a' value in a quadratic function determine?

Back

The direction of the parabola (upward if a > 0, downward if a < 0).

Front

What is the y-intercept of a quadratic function?

Back

The point where the graph intersects the y-axis (when x = 0).

Front

How do you determine if a parabola opens upwards or downwards?

Back

By the sign of 'a' in the quadratic equation.