Solve and Graph the Absolute Value Inequality 2x – 4 < 8

To solve the absolute value inequality 2x – 4 < 8, we follow these steps:

  1. Start by isolating the absolute value expression. We can do this by adding 4 to both sides:
  2. 2x - 4 + 4 < 8 + 4
    2x < 12
  3. Next, divide both sides by 2:
  4. x < 6
  5. Now we need to consider the other side of the absolute value inequality, which is when the expression is less than -8. We set it up as follows:
  6. 2x - 4 > -8
  7. Add 4 to both sides again:
  8. 2x - 4 + 4 > -8 + 4
    2x > -4
  9. And divide by 2:
  10. x > -2

Combining both parts of the solution, we find that:

-2 < x < 6

This gives us the solution where x is between -2 and 6.

To graph the solution:

  • Plot open circles at -2 and 6 on a number line to indicate that these points are not included in the solution.
  • Shade the region between -2 and 6 to represent all the values of x that satisfy the inequality.

The final solution, -2 < x < 6, indicates all numbers x that lie in this range.

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