Chapter 4.6, Problem 3PSA

To determine

To find: The slope of given line.

Answer to Problem 3PSA

  $-4$ .

Explanation of Solution

Given information:

Line $\overleftrightarrow{EF}$ has a slope of $-4$ and $\overleftrightarrow{EF}\parallel \overleftrightarrow{GH}$ .

Concept used: Slope of two parallel lines are equal.

i.e. $m_1=m_2$ .

Calculation:

Given line $\overleftrightarrow{EF}$ has a slope of $-4$ and $\overleftrightarrow{EF}\parallel \overleftrightarrow{GH}$ .

Therefore slope of line $\overleftrightarrow{GH}$ would be negative reciprocal of line $\overleftrightarrow{EF}$ .

  $\text{So, slope of line }\overleftrightarrow{GH}=-4$ .