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Chapter 2: Q61. (page 74)

Find each value if $f (x) = 3 x - 4$
$f (- 1)$

Short Answer

Expert verified

The required solution is $f (- 1) = - 7$ .

Step by step solution

– State the concept

The value of $f (a)$ is given by putting $x = a$ in the expression for $f (x)$ .

– List the given data

The given function is $f (x) = 3 x - 4$ and the objective is to find $f (- 1)$ .

– Compute the required value

Put $x = - 1$ in $f (x) = 3 x - 4$ to get,

$\begin{matrix} f (- 1) = 3 (- 1) - 4 \\ = - 3 - 4 \\ = - 7 \end{matrix}$

So, $f (- 1) = - 7$ .

This is the required solution.

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Find each value if fx=3x-4f-1

Short Answer

Step by step solution

– State the concept

– List the given data

– Compute the required value

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Find each value if $f (x) = 3 x - 4$
$f (- 1)$