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Sets of points in the coordinate system

Source: licencja: CC 0.

Zbiory punktów w układzie współrzędnych

Learning objectives

You will learn to mark sets of points in the coordinate system.

Learning effect

  • You mark sets of points in the coordinate system.

Task 1

Mark a set of pointsset of pointsset of points in the coordinate system, whose ordinate is two times greater than the abscissa.

Answer the questions:

  1. In which quadrants of the coordinate system there are points that satisfy this condition?

  2. What figure do such points create?

  3. What figure is created by points whose ordinate is two times greater than the abscissa?

Check your answers by using the following applet.

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Geogebra aplet - Punkty o pewnej własności. Galeria z opisami alternatywnymi poniżej.
Source: GroMar, licencja: CC BY 3.0.

Conclusion:

  • We can mark sets of points that create for example a linelineline or a half‑planehalf‑planehalf‑plane in the coordinate system.

Use obtained information in exercises.

Task 2
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nagranie abstraktu

In the coordinate system, mark ten points whose second coordinate is equal to 7. What figure will you obtain after connecting these points? How to describe the relation between these points?

Task 3
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nagranie abstraktu

In the coordinate system, mark ten points whose first coordinate is equal to -5. What figure will you obtain after connecting these points? How to describe the relation between these points?

Task 4
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nagranie abstraktu

In the coordinate system, mark ten points whose coordinates are opposite numbers. What figure will you obtain after connecting these points? How to describe the relation between these points?

Task 5
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nagranie abstraktu

In the coordinate system, mark ten points whose second coordinate is greater than the first coordinate by 3. What figure will you obtain after connecting these points? How to describe the relation between these points?

Task 6
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nagranie abstraktu

An extra task:

In the coordinate system, mark the set of pointsset of pointsset of points (x; y) whose coordinates satisfy the condition 0x4 and 0y6.

Exercises

Exercise 1
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Wersja alternatywna ćwiczenia: In the coordinate system, mark such set of points whose ordinate is three times greater than the abscissa. Through which quadrants of the coordinate system does the line you drew go through? Możliwe odpowiedzi: 1. I and II, 2. II and IV, 3. II and IV, 4. I and III
zadanie
Source: GroMar, licencja: CC BY 3.0.
Exercise 2

In the coordinate system, mark a set of points (x; y) whose coordinates satisfy the condition and . What part of the plane is the marked set of points?

Exercise 3

In the coordinate system, mark such points whose sum of coordinates is a negative number. Is the obtained figure a half‑plane?

Describe the solution in English.

Exercise 4
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Wersja alternatywna ćwiczenia: Indicate which pairs of expressions or words are translated correctly. Możliwe odpowiedzi: 1. zbiór punktów - set of points, 2. prosta - line, 3. płaszczyzna - plane, 4. półpłaszczyzna - set of points, 5. ćwiartki układu współrzędnych - half-plane
zadanie
Source: GroMar, licencja: CC BY 3.0.
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Interaktywna gra, polegająca na łączeniu wyrazów w pary w ciągu jednej minuty. Czas zaczyna upływać wraz z rozpoczęciem gry. Jeden ruch to odkrywanie najpierw jednej potem drugiej karty z wyrazem. Każdy wyraz jest odczytywany. Kolejny ruch to odkrywanie trzeciej i czwartej karty. W ten sposób odsłuchasz wszystkie wyrazy. Nawigacja z poziomu klawiatury za pomocą strzałek, odsłuchiwanie wyrazów enterem lub spacją. Znajdź wszystkie pary wyrazów.
Source: Zespół autorski Politechniki Łódzkiej, licencja: CC BY 3.0.

Glossary

half‑plane
half‑plane

półpłaszczyzna

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wymowa w języku angielskim: half‑plane
line
line

prosta

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wymowa w języku angielskim: line
plane
plane

płaszczyzna

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wymowa w języku angielskim: plane
quadrant of the coordinate sysem
quadrant of the coordinate sysem

ćwiartka układu współrzędnych

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wymowa w języku angielskim: quadrant of the coordinate sysem
set of points
set of points

zbiór punktów

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wymowa w języku angielskim: set of points

Keywords

half‑planehalf‑planehalf‑plane – each of two parts of the plane that the line located on this plane divides it, together with this line

linelineline

planeplaneplane

set of pointsset of pointsset of points