Graphing Quadratic Functions Assessment

Front

What is the y-intercept of the function f(x) = 2x² - 2x + 1?

Back

(0, 1)

Front

What is the shape of the graph of a quadratic function?

Back

Parabola

Front

What do we call the highest or lowest point of a parabola?

Back

Vertex

Front

What is the axis of symmetry in a parabola?

Back

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

Front

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

Back

f(x) = ax² + bx + c

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 vertex of the parabola represented by the function f(x) = 2(x + 1)² + 3?

Back

(-1, 3)

Front

How can you determine if a quadratic function opens upwards or downwards?

Back

By looking at the coefficient 'a' in the standard form; if 'a' is positive, it opens upwards.

Front

What is the formula for the axis of symmetry of a parabola in standard form?

Back

x = -b/(2a)