Page 2: Interpreting the Solution

This page focuses on interpreting the graphical solution and provides an additional example.

Step 4: Read the solution from the graph

• The solution is the point where the two lines intersect
• In this case, the solution is the point P$1, -4$

Definition: The solution to a system of equations is the point where all equations are simultaneously satisfied.

New Example: Solve the system of equations graphically:

1. x + y = 1
2. -x - y = 3

Transforming the equations:

1. y = -x + 1
2. y = -x - 3

Highlight: Rozwiązywanie układów równań metodą graficzną zadania involves transforming equations and plotting them to find their intersection.

The page includes a partial graph showing these new lines being plotted.

Example: For y = -x + 1, points (0, 1) and (1, 0) are marked Example: For y = -x - 3, points $0, -3$ and $-3, 0$ are marked

Page 3: Completing the Example

The final page completes the graphical solution for the new example.

Full graph of the system:

• Both lines y = -x + 1 and y = -x - 3 are clearly plotted
• The point of intersection is marked as P$-1, -2$

Highlight: The solution to this system is x = -1 and y = -2.

Example: Rozwiąż graficznie układ równań funkcja kwadratowa - Solve graphically a system of equations with a quadratic function

The page reinforces the importance of accurate graphing and careful reading of the intersection point.

Quote: "Rozwiązanie: x = -1, y = -2" (Solution: x = -1, y = -2)

This example demonstrates how the Metodą graficzną układ równań can be applied to different types of linear systems, providing a visual representation of the solution.

Page 1: Steps for Graphical Method

The first page outlines the initial steps for solving systems of equations graphically.

Highlight: The graphical method involves transforming equations and plotting lines to find their intersection.

Step 1: Transform each equation to y = ax + b form

• Example: 2x + 2y = -6 becomes y = -x - 3
• Example: 10x - 5y = 30 becomes y = 2x - 6

Step 2: Calculate characteristic points for each line

• Find x and y intercepts or other easily calculated points

Step 3: Plot both lines on a coordinate system

• Use the calculated points to accurately draw each line

Example: For y = -x - 3, points $-1, -2$ and $0, -3$ are plotted Example: For y = 2x - 6, points $0, -6$ and (3, 0) are plotted

The page includes a graph showing both lines plotted, with the point of intersection visible.

Vocabulary: Układy równań metodą graficzną zadania PDF - Systems of equations using graphical method problems PDF