## All Tasks

#### Zero-point 1

$f(x) = (x - d)^2$, $d$ is a real number.
Cross the right answer.
The graph of the function has one zero-point for...

# Quadratic functions

Reasoning

9

#### Zero-point 2

$f(x) = x^2 + e$, $e$ is a real number.
Cross the right answer.
The graph of the function has two zero-point for...

# Quadratic functions

Reasoning

9

#### Vertex of the graph

Give the coordinates of the vertex S of the graph of f(x) = x² + 2x + 2.

# Quadratic functions

Training

9

#### Graph and term

There is given the graph of the funktion f(x) = x² + e.
Cross all senentences, which are correct for the graph.

# Quadratic functions

Training

9

#### Bridge

A bridge has a span of 60m and a height of 18 m.
Cross a possible term to describe the shape of the bridge, when the origin of the coordinate system is in the left point of the bridge.

# Quadratic functions

Modeling

9

#### Tabletennis

The Chinese tabletennis player Ma Long is famous for his balloon defense. In one case, he make a ballon defense with 3.8 m height and a range of 10.6 m.
The flight path can be described by f(x) = - 0.14x² + 3.8
Cross all correct answers for this description.

# Quadratic functions

Modeling

9