Chapter 1: Q73. (page 24)

Evaluate the expression when $x = 2 and y=8$ (Lesson 1.3)
localid="1649145504015" $x y + 1$

Short Answer

Expert verified

The value of the expression is17.

Step by step solution

Step-1 – Order of operations

To evaluate any expression involving more than one operation, follow the below order of operations:

First evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
Evaluate the exponents.
Perform Multiplication and division from left to right.
Perform addition and subtraction from left to right.

Step-2 – Multiply the numbers from left to right

To evaluate the given expression $x y + 1$ , substitute 2 for x and 8 for y and simplify the further shown below

$\begin{array}{l} x y + 1 = 2 \cdot 8 + 1 \\ = 16 + 1 \end{array}$

Step-3 – Add the numbers

Now to simplify further, add the numbers to get

$\begin{array}{l} 16 + 1 \\ = 17 \end{array}$

Thus, the value of the expression is 17.

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Evaluate the expression when $x = 2 and y=8$ (Lesson 1.3)
localid="1649145504015" $x y + 1$

Short Answer

Step by step solution

Step-1 – Order of operations

Step-2 – Multiply the numbers from left to right

Step-3 – Add the numbers

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Evaluate the expression when x=2and y=8(Lesson 1.3)localid="1649145504015" xy+1

Short Answer

Step by step solution

Step-1 – Order of operations

Step-2 – Multiply the numbers from left to right

Step-3 – Add the numbers

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Theoretical and Mathematical Physics

Calculus

Applied Mathematics

Pure Maths

Discrete Mathematics

Statistics

Study anywhere. Anytime. Across all devices.

Evaluate the expression when $x = 2 and y=8$ (Lesson 1.3)
localid="1649145504015" $x y + 1$