Math Problem Statement

For the equation 2x - 4y = 8, solve for y.

Solution

To solve the equation 2x4y=82x - 4y = 8 for yy, follow these steps:

  1. Isolate the term with yy: 2x4y=82x - 4y = 8 Subtract 2x2x from both sides: 4y=82x-4y = 8 - 2x

  2. Divide each term by 4-4 to solve for yy: y=82x4y = \frac{8 - 2x}{-4}

  3. Simplify the expression: y=84+2x4y = -\frac{8}{4} + \frac{2x}{4} y=2+x2y = -2 + \frac{x}{2}

Thus, the solution for yy is: y=12x2y = \frac{1}{2}x - 2

Comparing this with the given choices in your image:

  • y=2+12xy = -2 + \frac{1}{2}x

This corresponds to the correct choice.

Would you like more details or have any questions?

Here are 5 related questions to explore further:

  1. How do you solve for xx in a linear equation with two variables?
  2. What is the slope-intercept form of a linear equation?
  3. How can you graph the equation 2x4y=82x - 4y = 8 on a coordinate plane?
  4. What does the slope represent in the context of the equation y=12x2y = \frac{1}{2}x - 2?
  5. How do you verify if a point lies on the line represented by 2x4y=82x - 4y = 8?

Tip: Always double-check your algebraic manipulations to ensure accuracy when solving for a variable.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations

Formulas

y = mx + b (Slope-Intercept Form)
Isolating variables

Theorems

Properties of equality

Suitable Grade Level

Grades 6-8