The graph of the system of equations is given below:

Red Line: y=3+2

Blue Line: y=-x+6

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Part I: Using the graph, determine the solution to the system and explain how you know. Write the solution as an ordered pair
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1 answer

To find the solution to the system of equations given by the red line \(y = 3 + 2\) (which simplifies to \(y = 5\)) and the blue line \(y = -x + 6\), we can determine the intersection point of the two lines on the graph.

  1. Identify the equations:

    • The red line has a constant \(y\) value of \(5\) (horizontal line).
    • The blue line has a negative slope and \(y\)-intercept of \(6\).
  2. Plotting the lines:

    • The red line will be a horizontal line at \(y = 5\).
    • The blue line will decrease as \(x\) increases, starting at \(y = 6\) when \(x = 0\) and crossing the \(y = 5\) line at some \(x\) value.
  3. Finding the intersection:

    • Set \(y = 5\) (from the red line) into the blue line's equation: \[ 5 = -x + 6 \] Rearranging gives: \[ -x = 5 - 6 \ -x = -1 \ x = 1 \]
  4. Coordinates of the intersection point:

    • The intersection point can then be written as the ordered pair \((1, 5)\).
  5. Conclusion:

    • The solution to the system of equations is the point where the two lines intersect. Since the red line is constant at \(y = 5\) and the blue line is calculated to intersect at \(x = 1\), the solution to the system is: \[ \boxed{(1, 5)} \]

This is how we determine the solution: by finding where the lines intersect on the graph and confirming that the coordinates of that intersection satisfy both equations.