Math Problem Statement

Are the two lines parallel, perpendicular, or neither?

Solution

The image shows two lines graphed on a coordinate plane, and you are asked to determine whether the lines are parallel, perpendicular, or neither.

Analysis:

  • Parallel lines have the same slope and never intersect.
  • Perpendicular lines have slopes that are negative reciprocals of each other (i.e., the product of their slopes is -1).
  • Neither means the lines are neither parallel nor perpendicular, but they intersect.

Observing the graph:

  • The two lines clearly intersect at a point that is not a right angle.
  • Since they are not perpendicular (no right angle) and their slopes differ, they are neither parallel nor perpendicular.

Thus, the correct answer is:

  • Neither.

Would you like more details on how to calculate slopes, or do you have any other questions?

Here are 5 related questions:

  1. How do you calculate the slope of a line from a graph?
  2. What conditions must two lines satisfy to be perpendicular?
  3. Can two lines be perpendicular if they intersect at any angle other than 90 degrees?
  4. How can you determine if two lines are parallel algebraically?
  5. Why is the concept of slope important in geometry?

Tip: To quickly check if two lines are perpendicular, find their slopes. If the product of the slopes equals -1, they are perpendicular!

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Coordinate Geometry

Formulas

Slope formula: (y2 - y1) / (x2 - x1)
Condition for parallelism: slopes are equal
Condition for perpendicularity: product of slopes equals -1

Theorems

Slope-intercept form y = mx + b
Parallel and Perpendicular Line Theorem

Suitable Grade Level

Grades 7-10