Math Problem Statement

Solve this system of equations by using graphing: y = 5x - 6 y = 2x - 6

Solution

To solve this system of equations by graphing:

Given: y=5x6y = 5x - 6 y=2x6y = 2x - 6

The solution to this system is the point where the two lines intersect.

  1. Since both equations are set equal to yy, we can set them equal to each other: 5x6=2x65x - 6 = 2x - 6

  2. Solving for xx: 5x2x=6+65x - 2x = -6 + 6 3x=03x = 0 x=0x = 0

  3. Substitute x=0x = 0 back into either equation to find yy: y=5(0)6=6y = 5(0) - 6 = -6

So, the solution to the system is: (0,6)(0, -6)

Would you like more details or have any questions?

Here are some related questions to explore:

  1. How would the solution change if the slopes of the equations were different?
  2. How can we verify this solution graphically?
  3. What is the significance of the intercept in these equations?
  4. How do we interpret the system if the lines are parallel?
  5. What if we used substitution instead of setting equations equal?

Tip: Graphing systems of equations visually helps confirm algebraic solutions and provides insights into their intersections.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Systems of Equations

Formulas

y = mx + b (slope-intercept form)
Setting equations equal to solve for x
Substitution to find y

Theorems

Intersection of lines in a system of linear equations

Suitable Grade Level

Grades 8-10