Use absolute value notation to define the interval shown below. -7 9

Name: Use absolute value notation to define the interval shown below. -7 9
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Question

Use absolute value notation to define the interval shown below.  -7 9

Quizplus · Accepted Answer

We can define the interval as [-7,9] using absolute value notation as {x : |x - 1| ≤ 8} which simplifies to {x : -8 ≤ x - 1 ≤ 8}. Solving the inequalities gives the interval [-7,9]. Therefore, the correct choice is C.

Use Absolute Value Notation to Define the Interval Shown Below