Math Problem Statement

Given m || n, find the value of x and y.

Solution

In this problem, we are given that lines mnm \parallel n, meaning they are parallel, and we need to find the values of xx and yy.

Step 1: Recognize angle relationships due to parallel lines

Since the lines mm and nn are parallel and a transversal cuts across them, the angles labeled (8x+2)(8x + 2)^\circ and (4x+10)(4x + 10)^\circ form corresponding angles. Corresponding angles are equal when the lines are parallel.

Thus, we can set up the equation: (8x+2)=(4x+10)(8x + 2)^\circ = (4x + 10)^\circ

Step 2: Solve for xx

We solve the equation: 8x+2=4x+108x + 2 = 4x + 10 Subtract 4x4x from both sides: 4x+2=104x + 2 = 10 Subtract 2 from both sides: 4x=84x = 8 Divide both sides by 4: x=2x = 2

Step 3: Solve for yy

Since yy^\circ and (4x+10)(4x + 10)^\circ are alternate interior angles (which are equal when the lines are parallel), we can write: y=4x+10y = 4x + 10 Substitute x=2x = 2 into this equation: y=4(2)+10=8+10=18y = 4(2) + 10 = 8 + 10 = 18

Final Answer:

x=2,y=18x = 2, \quad y = 18

Would you like any further explanation or details?

Related Questions:

  1. What is the definition of corresponding angles?
  2. How do you prove that alternate interior angles are equal when lines are parallel?
  3. Can you explain the significance of transversal lines in geometry?
  4. How does the value of xx affect the angle equations?
  5. What would happen if the lines were not parallel?

Tip: When working with parallel lines, always look for corresponding or alternate interior angles, as these can be easily set equal to solve for unknown variables.

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Math Problem Analysis

Mathematical Concepts

Algebra
Angle Relationships
Parallel Lines
Corresponding Angles
Alternate Interior Angles

Formulas

Corresponding angles: (8x + 2)° = (4x + 10)°
Alternate interior angles: y = 4x + 10

Theorems

Corresponding Angles Theorem
Alternate Interior Angles Theorem

Suitable Grade Level

Grades 7-9