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Definition of Functions

Given two fun...

Question

Given two functions $f (x) = 2 x + 1$ and $g (x) = 4 x - 4$ , find the value of $f (0) \times g (0)$ ?

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Solution

The correct option is B $- 4$
Given, $f (x) = 2 x + 1$
The value of $f (0)$ is
$\Rightarrow f (0) = 2 \times 0 + 1$
$\Rightarrow f (0) = 1$
Also given, $g (x) = 4 x - 4$
Then the value of $g (0)$ is
$\Rightarrow g (0) = 4 \times 0 - 4$
$\Rightarrow g (0) = - 4$
$∴ f (0) \times g (0) = 1 \times (- 4) = - 4$

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Given two functions f(x)=2x+1 and g(x)=4x−4, find the value of f(0)×g(0)?

The correct option is B −4Given, f(x)=2x+1The value of f(0) is⇒f(0)=2×0+1⇒f(0)=1Also given,g(x)=4x−4Then the value of g(0) is⇒g(0)=4×0−4⇒g(0)=−4∴f(0)×g(0)=1×(−4)=−4

Given two functions $f (x) = 2 x + 1$ and $g (x) = 4 x - 4$ , find the value of $f (0) \times g (0)$ ?