Question

question 10 of 10

if two lines are perpendicular, their slopes are negative reciprocals.

a. true
b. false

Explanation:

Analyze the definition of perpendicular slopes

$$ m_1 \cdot m_2 = -1 \implies m_2 = -\frac{1}{m_1} $$

Evaluate the statement

The statement "If two lines are perpendicular, their slopes are negative reciprocals" is mathematically correct for non-vertical and non-horizontal lines.

Answer:

• A. True (Correct answer)
• B. False