Question

question 9 of 10

lines (c) and (d) are perpendicular. if the slope of line (c) is -4, what is the slope of line (d)?

a. (\frac{1}{4})
b. 4
c. -4
d. -(\frac{1}{4})

Explanation:

Identify the perpendicular slope relationship

$$ m_c \cdot m_d = -1 $$

Substitute the given slope and solve

$$
LATEXBLOCK0
$$

Answer:

• (A) \(\frac{1}{4}\) (Correct answer)
• (B) 4
• (C) -4
• (D) -\(\frac{1}{4}\)