Chapter 3: Q53. (page 127)

Find each value if $f (x) = 4 x + 3$ and $g (x) = 5 x - 7$ .
$53 . f (0.5)$

Short Answer

Expert verified

The value of the expression $f (0.5)$ is $5$ .

Step by step solution

Step-1 – Apply the concept of evaluating a function

To evaluate the function, take the original function, substitute the value in place of variable and simplify the expression.

Step-2 –Evaluate the expression.

Consider the expression $f (x) = 4 x + 3$ .

The objective is to find the value of $f (0.5)$ .

Substitute x as $0.5$ in the function $f (x) = 4 x + 3$

$f (0.5) = 4 (0.5) + 3$

Step-3 – Simplify the expression

Multiply the terms on the right hand side and compute the value.

$\begin{array}{l} f (0.5) = 4 (0.5) + 3 \\ = 2 + 3 \\ = 5 \end{array}$

Hence, the value of the expression $f (x) = 4 x + 3$ when $x = 0.5$ is $5$ .

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Find each value if $f (x) = 4 x + 3$ and $g (x) = 5 x - 7$ .
$53 . f (0.5)$

Short Answer

Step by step solution

Step-1 – Apply the concept of evaluating a function

Step-2 –Evaluate the expression.

Step-3 – Simplify the expression

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Find each value iffx=4x+3 and gx=5x-7 .53.f0.5

Short Answer

Step by step solution

Step-1 – Apply the concept of evaluating a function

Step-2 –Evaluate the expression.

Step-3 – Simplify the expression

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Discrete Mathematics

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Applied Mathematics

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Study anywhere. Anytime. Across all devices.

Find each value if $f (x) = 4 x + 3$ and $g (x) = 5 x - 7$ .
$53 . f (0.5)$