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Chapter 1: Q16. (page 24)

Error Analysis Describe and correct the error in evaluating the expression -17.

Short Answer

Expert verified

The correct expression is -17=17.

Step by step solution

01

Step-1 – Absolute value of a number

Absolute value of any positive or negative number is always positive and equal to the magnitude of the number. The absolute value of a number N is denoted by N.

The absolute value of a number represents the distance of the number from 0 in the number line.

02

Step-2 – Example of Absolute value

The absolute value of 3 is denoted by 3and is equal to 3.

And the absolute value of -4is denoted by -4and is equal to 4.

03

Step-3 – Evaluate the expression

The absolute value of -17will be 17 as the distance of -17 is 17 units to the left from 0 on the number line.

So, the correct expression for the given absolute value number is

-17=17

Thus, the correct expression is -17=17.

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