Question
The equations of three lines are given below. Line 1: 8x+6y=2 Line 2: 3y=4x+5 Line 3: y=(3)/(4)x-6 For each pair of lines, determine whether they are parallel, perpendicular, or nelther.
Solution
4.2
(271 Votes)
Seymour
Elite ยท Tutor for 8 years
Answer
### Line 1 and Line 2: Neither### Line 1 and Line 3: Perpendicular### Line 2 and Line 3: Neither
Explanation
## Step 1: Find the slope of Line 1### Rewrite
in slope-intercept form (
). Subtract
from both sides:
. Divide both sides by 6:
. Simplify:
. The slope of Line 1 is
.## Step 2: Find the slope of Line 2### Rewrite
in slope-intercept form. Divide both sides by 3:
. The slope of Line 2 is
.## Step 3: Find the slope of Line 3### The equation
is already in slope-intercept form. The slope of Line 3 is
.## Step 4: Compare Line 1 and Line 2### The slopes are
and
. Since
, the lines are not parallel. Since
, the lines are not perpendicular. Therefore, Line 1 and Line 2 are neither parallel nor perpendicular.## Step 5: Compare Line 1 and Line 3### The slopes are
and
. Since
, the lines are not parallel. Since
, the lines are perpendicular.## Step 6: Compare Line 2 and Line 3### The slopes are
and
. Since
, the lines are not parallel. Since
, the lines are not perpendicular. Therefore, Line 2 and Line 3 are neither parallel nor perpendicular.