## All Tasks

#### terms square 1

The depicted sequence of matchstick figures is continued. Indicate the number of matchsticks at the 4th step.

# Terms with variables

Modeling
7

#### Perimeter triangle

In an isosceles triangle, the base is 5 cm longer than each leg. Set up a term that can be used to determine the perimeter of the figure.

# Terms with variables

Modeling
7

#### Sequence of triangles 2

Determine a term that can be used for each step to determine the number of small triangles from which each figure is built.

# Terms with variables

Modeling
8

#### Sequence of squares 2

Determine a term that can be used for each step to determine the number of small squares from which each figure is built.

# Terms with variables

Modeling
6

#### 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