Chapter 1: Q6. (page 30)

Evaluate each expression if $a = - 4$ and $b = 1.5$
$|- 6 b|$

Short Answer

Expert verified

The absolute value of expression inside bracket is9

Step by step solution

Step1- Order of evaluation

To evaluate an expression involving one operation, follow the below order of operation

First replace the algebraic expression inside the grouping symbols like matrix brackets ( $||$ ) with numeric expression
Perform multiplication
Evaluate the absolute value

Step2- Simplify the expression inside grouping symbol

Evaluate the value of given expression, simply the expression inside the bracket and then find the absolute value of expression as shown below

$\begin{matrix} | - 6 b | = | - 6 \times 1.5 | \\ = | - 9 | \end{matrix}$

Step3-Find the absolute value of expression inside the bracket

The absolute value of $|- 9| = 9$

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Evaluate each expression if $a = - 4$ and $b = 1.5$
$|- 6 b|$

Short Answer

Step by step solution

Step1- Order of evaluation

Step2- Simplify the expression inside grouping symbol

Step3-Find the absolute value of expression inside the bracket

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Evaluate each expression if a=-4 and b=1.5-6b

Short Answer

Step by step solution

Step1- Order of evaluation

Step2- Simplify the expression inside grouping symbol

Step3-Find the absolute value of expression inside the bracket

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Theoretical and Mathematical Physics

Mechanics Maths

Probability and Statistics

Discrete Mathematics

Decision Maths

Logic and Functions

Study anywhere. Anytime. Across all devices.

Evaluate each expression if $a = - 4$ and $b = 1.5$
$|- 6 b|$