/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q6. Evaluate the expression when x=-... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 1: Q6. (page 22)

Evaluate the expression when x=-4.
localid="1648723812484" -x

Short Answer

Expert verified

The value of the expressionis 4.

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.

For example, 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.

02

Step-2 – Opposite of a number

Opposite of any real number can be obtained by multiplying it with -1. On the number line, opposite of any number be located on the opposite side at the same distance from the midpoint 0.

For example, the opposite of the number -5 is 5.

03

Step-3 – Evaluate the expression

To evaluate the value of the expression -x, substitute -4 for x and simplify further as shown below,

鈭�x=鈭�鈭�4=4

Thus, the value of the given expression is 4.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Write the product using an exponent.

虫鈭檟鈭檟鈭檟

Write a variable expression to represent the phrase.

The number of pounds in y ounces

State the absolute value and the opposite of the number.

3

Music Competition The double bar graph shows three students鈥� scores in a music competition. A student鈥檚 final score is the sum of the points for technique t and for interpretation i.

a. Write a variable expression for a student鈥檚 final score.

b. Find each student鈥檚 final score.

c. Interpret You earn 35 points for technique. At least how many points must you earn for interpretation to have a higher score than students A, B, and C?

Write a variable expression to represent the phrase.

The sum of a number and 9.4
See all solutions

Recommended explanations on Math Textbooks

Discrete Mathematics

Read Explanation

Pure Maths

Read Explanation

Applied Mathematics

Read Explanation

Statistics

Read Explanation

Mechanics Maths

Read Explanation

Logic and Functions

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.