Math Problem Statement

Use the diagram to work out the solution to these simultaneous equations: y = -2x + 4 y = (1/2)x + 1

Solution

To solve the simultaneous equations from the graph, we look for the point where the two lines intersect.

The equations are:

  1. y=2x+4y = -2x + 4
  2. y=12x+1y = \frac{1}{2}x + 1

From the graph, we can visually find the point of intersection. It appears the two lines meet at (x,y)=(1,3)(x, y) = (1, 3).

Thus, the solution to the system of equations is: x=1,y=3x = 1, \quad y = 3

Would you like a more detailed breakdown or have any further questions?

Here are some related questions you can explore:

  1. How would you solve this system algebraically?
  2. What are other methods for solving simultaneous equations (like substitution or elimination)?
  3. How do you check the solution of a system of equations?
  4. What does the graph of a system of linear equations represent geometrically?
  5. How does the slope of each line relate to the coefficients in the equations?

Tip: Always check the solution by substituting the values back into both original equations to verify they hold true!

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Math Problem Analysis

Mathematical Concepts

Simultaneous Equations
Linear Equations
Graph Intersection

Formulas

y = mx + c
Intersection Point of Two Lines

Theorems

Graphical Method for Solving Simultaneous Equations

Suitable Grade Level

Grades 8-10