Chapter 1: Q4D. (page 48)

For $f (x) = 2 x - 3$ finding each value.
$f (- 1) + f (2)$

Short Answer

Expert verified

The value $f (- 1) + f (2)$ is –4

Step by step solution

Step 1. From question.

The given expression is $f (x) = 2 x - 3$

Step 2. To find.

We have to find the value of $f (- 1) + f (2)$ if $f (x) = 2 x - 3$

Step 3. Evaluation.

Putting $x = (- 1)$ and 2 in $f (x) = 2 x - 3$ and substituting we get,

$\begin{array}{l} f (- 1) + f (2) = 2 (- 1) - 3 + 2 (2) - 3 \\ = - 2 - 3 + 4 - 3 \\ = - 5 + 1 \\ = - 4 \end{array}$

Hence, the value of $f (- 1) + f (2)$ it $f (x) = 2 x - 3$ is – 4.

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For $f (x) = 2 x - 3$ finding each value.
$f (- 1) + f (2)$

Short Answer

Step by step solution

Step 1. From question.

Step 2. To find.

Step 3. Evaluation.

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For f(x)=2x–3 finding each value.f(-1)+f(2)

Short Answer

Step by step solution

Step 1. From question.

Step 2. To find.

Step 3. Evaluation.

One App. One Place for Learning.

Most popular questions from this chapter

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For $f (x) = 2 x - 3$ finding each value.
$f (- 1) + f (2)$