Question

If a function is defined as f(x)=2x+3 , find the value of f(4) .

Answer 1

Answer:

Substituting value of 4 in f(4)

$f(4) = 2(4) + 3$

$f(4) = 8 + 3$

$f(4) = 11$

Answer 2

Answer:

Required value of f(4) is 11.

Step-by-step explanation:

Given, function is $f(x) = 2x + 3$

We want to find value of f(4).

We are putting value of x = 4.

So,

$f(4) = 2 \times 4 + 3 \\ = 8 + 3 \\ = 11$

Therefore, value of f(4) is 11.

This is a problem of Algebra.

Algebra.Some important Algebra's formula:

Algebra.Some important Algebra's formula:${(x + y)}^{2} = {x}^{2} + 2xy + {y}^{2} \\ {(x - y)}^{2} = {x}^{2} - 2xy + {y}^{2} \\ {(x + y)}^{3} = {x}^{3} + 3 {x}^{2} y + 3x {y}^{2} + {y}^{3} \\ {(x - y)}^{3} = {x}^{3} - 3 {x}^{2} y + 3x {y}^{2} - {y}^{3} \\ {x}^{3} + {y}^{3} = {(x + y)}^{3} - 3xy(x + y) \\ {x}^{3} - {y}^{3} = {(x - y)}^{3} + 3xy(x - y) \\ {x}^{2} - {y}^{2} = (x + y)(x - y) \\ {x}^{2} + {y}</u>^{2} = {(x - y)}^{2} + 2xy \\ {x}^{2} - {y}^{2} = {(x + y)}^{2} - 2xy \\ {x}^{3} - {y}^{3} = (x - y)( {x}^{2} + xy + {y}^{2} ) \\ {x}^{3} + {y}^{3} = (x + y)( {x}^{2} - xy + {y}^{2} )$

Two more important Algebra's problem:

1) https://brainly.in/question/13024124

2) https://brainly.in/question/1169549

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