Parts of a Quadratic Function

Front

The x-intercepts of a quadratic equation are known as the _____

Back

Zeros

Front

What is the axis of symmetry if the parabola has symmetric points (-4, 4) and (8, 0)?

Back

x = 2

Front

What is the factored form of the quadratic equation y = –3(x – 7)(x – 5)?

Back

y = –3(x – 7)(x – 5)

Front

What is the equation for this parabola in factored form? y=(x+2)(x-1), y=(x-2)(x+1), y=(x-2)(x-1), y=(x+2)(x+1)

Back

y=(x+2)(x-1)

Front

What are the zeros of the quadratic function shown in the graph? (–2,0), (–10, 0), (–2, 0), (10, 0), (6, 0), (2, 0), (10, 0)

Back

(2, 0), (10, 0)

Front

What is the standard form of a quadratic function?

Back

y = ax^2 + bx + c

Front

What does the vertex of a parabola represent?

Back

The highest or lowest point of the parabola.

Front

How do you find the vertex of a quadratic function in standard form?

Back

Use the formula x = -b/(2a) to find the x-coordinate, then substitute back to find the y-coordinate.

Front

What is the significance of the 'a' value in a quadratic function?

Back

It determines the direction of the parabola (upward if a > 0, downward if a < 0) and the width of the parabola.

Front

What is the quadratic formula used for?

Back

To find the roots (or zeros) of a quadratic equation.