Math Problem Statement

Which of the following shows the equation solved for y? 2x + 6y = -12

Solution

The question asks for the equation 2x+6y=122x + 6y = -12 to be solved for yy.

Let's solve the equation step by step:

Step 1: Isolate the yy-term

We start by moving the 2x2x to the other side of the equation: 6y=122x6y = -12 - 2x which can be rewritten as: 6y=2x126y = -2x - 12

Step 2: Solve for yy

Now, divide both sides of the equation by 6 to isolate yy: y=2x126y = \frac{-2x - 12}{6} Simplifying the right-hand side: y=2x6+126y = \frac{-2x}{6} + \frac{-12}{6} y=13x2y = \frac{-1}{3}x - 2

This matches option b: y=13x2y = -\frac{1}{3}x - 2.

Would you like more details or have any questions?

Here are 5 related questions to expand on this:

  1. How do you graph the equation y=13x2y = -\frac{1}{3}x - 2?
  2. What does the slope 13-\frac{1}{3} indicate about the graph's steepness?
  3. Can you rearrange other linear equations to slope-intercept form?
  4. What is the y-intercept of y=13x2y = -\frac{1}{3}x - 2, and how do you interpret it?
  5. How would the equation change if the slope were positive?

Tip: When solving linear equations, aim to isolate the variable step by step, and always simplify fractions for clarity.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Algebra

Formulas

y = mx + b
Solving for y in terms of x

Theorems

Slope-Intercept Form

Suitable Grade Level

Grades 8-10