Math Problem Statement

Graph the system below and write its solution: {-x + 2y = 4 y = (1/2)x + 2}

Solution

The system of equations given in the image is:

-x + 2y = 4 \\ y = \frac{1}{2}x + 2 \end{cases}$$ To solve this system graphically: 1. **Equation 1:** $$-x + 2y = 4$$ can be rewritten in slope-intercept form (i.e., $$y = mx + b$$): $$2y = x + 4 \quad \Rightarrow \quad y = \frac{1}{2}x + 2$$ So, both equations are identical, meaning the two lines overlap. 2. **Conclusion:** Since the two equations represent the same line, the system has **infinitely many solutions**. This happens when every point on the line is a solution to both equations. The solution should be marked as **infinitely many solutions**. Do you want more details or have any questions? ### Related Questions: 1. How do you determine when a system of equations has no solution? 2. What does it mean graphically when two lines have infinitely many solutions? 3. Can a system of linear equations have exactly one solution? How can we identify it? 4. What is the significance of parallel lines in a system of equations? 5. How do you convert an equation into slope-intercept form? **Tip:** Identical equations always imply that the system has infinitely many solutions.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Graphing Systems of Equations

Formulas

Slope-intercept form: y = mx + b

Theorems

If two lines are identical, the system has infinitely many solutions.

Suitable Grade Level

Grades 8-10