Algebra 1

Carter, Cuevas, Day, Holiday, Luchin

$Math Studyset 91影视 Explanations$ Math

Student Edition 路 801 pages

ISBN: 9780078884801

Chapter 1: Q33. (page 50)

Examples 4 and 5 If $f (x) = 鈭� 2 x 鈭� 3$ and $g (x) = x^{2} + 5 x,$ find each value. (P. 50)
$f (鈭� 1)$

Short Answer

Expert verified

The value of the expression is $- 1$ .

Step by step solution

Step 1. Interpreting of function.

$f (鈭� 1)$ Indicates the value of function $f (x)$ at $x = 鈭� 1$

Step 2. Apply substitution method.

Substitute $x = 鈭� 1$ into the function $f (x)$

width="139">f鈭�1=鈭�2鈭�1鈭�3

Step 3. Further calculation:

$\begin{array}{l} f (鈭� 1) = 2 鈭� 3 \\ f (鈭� 1) = 鈭� 1 \end{array}$

Thus, the function value at $x = 鈭� 1$ is $- 1$ .

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91影视

Examples 4 and 5 If $f (x) = 鈭� 2 x 鈭� 3$ and $g (x) = x^{2} + 5 x,$ find each value. (P. 50)
$f (鈭� 1)$

Short Answer

Step by step solution

Step 1. Interpreting of function.

Step 2. Apply substitution method.

Step 3. Further calculation:

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91影视

Examples 4 and 5 Iff(x)=鈭�2x鈭�3 andg(x)=x2+5x, find each value. (P. 50)f(鈭�1)

Short Answer

Step by step solution

Step 1. Interpreting of function.

Step 2. Apply substitution method.

Step 3. Further calculation:

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Probability and Statistics

Mechanics Maths

Theoretical and Mathematical Physics

Decision Maths

Discrete Mathematics

Pure Maths

Study anywhere. Anytime. Across all devices.

Examples 4 and 5 If $f (x) = 鈭� 2 x 鈭� 3$ and $g (x) = x^{2} + 5 x,$ find each value. (P. 50)
$f (鈭� 1)$