Math Problem Statement

Solve the system of equations by graphing: y = -2x + 4 and y = 6x - 4.

Solution

The image shows a system of two linear equations that need to be graphed and solved. The equations are:

  1. y=2x+4y = -2x + 4
  2. y=6x4y = 6x - 4

To solve these equations graphically:

  1. Plot the first equation y=2x+4y = -2x + 4:

    • The y-intercept is 44 (point (0,4)(0, 4)).
    • The slope is 2-2, so from (0,4)(0, 4), move down 2 units and 1 unit to the right to get another point (1,2)(1, 2).
  2. Plot the second equation y=6x4y = 6x - 4:

    • The y-intercept is 4-4 (point (0,4)(0, -4)).
    • The slope is 66, so from (0,4)(0, -4), move up 6 units and 1 unit to the right to get another point (1,2)(1, 2).
  3. Find the intersection of the two lines:

    • The lines intersect at (1,2)(1, 2). This is the solution to the system of equations.

Would you like me to show this in a graph or explain further? Let me know!

Here are some follow-up questions for exploration:

  1. What is the importance of the slope in graphing linear equations?
  2. How can you confirm the solution algebraically?
  3. Can these equations represent a real-world scenario? Provide an example.
  4. What happens if two lines in a system are parallel?
  5. How would you solve these equations using substitution or elimination?

Tip: Always check the intersection point in both equations to confirm accuracy!

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Graphing

Formulas

Slope-intercept form y = mx + b

Theorems

Intersection of two lines represents the solution to a system of linear equations

Suitable Grade Level

Grades 8-10