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Help Me Please. Which graph represents the solutions to the inequality |2x − 8| < 2?

Help Me Please. Which graph represents the solutions to the inequality |2x − 8| &lt-example-1

2 Answers

5 votes

Given |2x − 8| < 2, simplify this by dividing all terms by 2:


|x − 4| < 1


Think of 4 as the "center." Then the distance from 4 in either direction cannot equal 1 or more. Thus, the third answer choice is the one you want. The "solution set" lies between 3 and 5, but does NOT include the endpoints 3 and 5.

User Jovana
by
5.0k points
3 votes

Hey there!



|2x -8| < 2


This equation is a "and" problem


So, add
8 to both of your sides!



2x -8 +8 <2 + 8 \\ \\ CancelOut: -8 and 8 \\ \\ Keep: 2 +8 \\ \\ \\ 2x = 2x \\ \\ \\ 2 + 8 = 10


We get:
2x < 10


Divide by
2 to your sides



(2x)/(2) < (10)/(2) \\ \\ Cancel: (2x)/(2) \\ \\ \\ Keep: (10)/(2) \\ \\ \\ (10)/(2) = 5\\ \\ \\ Answer: x < 5


Or you can use this add this part to your equation because this is a two step inequality


Add
8 to your sides again



2x - 8 +8 > -2 + 8 \\ \\ \\ Cancel: -8 + 8 \\ \\ \\ Keep: -2 + 8 \\ \\ \\ -2 + 8 = 6


We get:
2x > 6


Divide by
2 on each of your sides



(2x)/(2) > (6)/(2) \\ \\ \\ Cancel: (2x)/(2) \\ \\ \\ Keep: (6)/(2) \\ \\ \\ x > 3


Answer:
x< 5 and
x> 3


Overall answer:
C


Good luck on your assignment and enjoy day!


~
LoveYourselfFirst:)


User Jaryd
by
5.4k points
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