Question

if m // n and the slope of line m is 3, what is the slope of line n?
a. $\frac{1}{3}$
b. $-\frac{1}{3}$
c. -3
d. 3

Explanation:

Step1: Recall slope property of parallel lines

Parallel lines have equal slopes.

Step2: Identify given and required slopes

Given slope of line $m$ is 3. Since $m\parallel n$, slope of line $n$ is same as slope of line $m$.

Answer:

D. 3